PCB貼片加工物料清單 (BOM) 中包含的7個(gè)最重要的事項(xiàng)
發(fā)布時(shí)間：2021-11-26 17:17 閱讀量：1364
當(dāng)您計(jì)劃從制造商處構(gòu)建印刷電路板 (PCB) 時(shí)，您會遇到的一件事是物料清單。這也稱為 BOM。現(xiàn)在，這份材料清單究竟是什么?它包括哪些因素?閱讀本文時(shí)，您是否有這些問題?嗯，這根本不是火箭科...
基本
文件
流程
錯(cuò)誤
SQL
調(diào)試
- 請求信息 : 2024-11-07 13:45:27 HTTP/1.1 GET : http://yourapartments.cn/index/newShow/127/78
- 運(yùn)行時(shí)間 : 0.371082s [ 吞吐率：2.69req/s ] 內(nèi)存消耗：908.30kb 文件加載：156
- 查詢信息 : 113 queries
- 緩存信息 : 1 reads,0 writes
- 會話信息 : SESSION_ID=961b250d4215ad943b2e85685bc77c29
- CONNECT:[ UseTime:0.016198s ] mysql:host=sql.m215.vhostgo.com;port=3306;dbname=huaxingpcb;charset=utf8
- SHOW FULL COLUMNS FROM `language` [ RunTime:0.010215s ]
- SELECT * FROM `language` WHERE `is_default` = '1' LIMIT 1 [ RunTime:0.000583s ]
- SELECT * FROM `language` WHERE `is_default` = '1' AND `mark` = 'cn' LIMIT 1 [ RunTime:0.000407s ]
- SELECT * FROM `language` [ RunTime:0.000402s ]
- SHOW FULL COLUMNS FROM `custom_tag` [ RunTime:0.009259s ]
- SELECT `variate`,`value` FROM `custom_tag` WHERE `custom_tag_id` <> 0 AND `lang` = 'cn' [ RunTime:0.000436s ]
- SHOW FULL COLUMNS FROM `banner` [ RunTime:0.009079s ]
- SELECT * FROM `banner` WHERE FIND_IN_SET('127', `column`) AND `lang` = 'cn' ORDER BY `weigh` DESC [ RunTime:0.000824s ]
- SHOW FULL COLUMNS FROM `webdata` [ RunTime:0.007526s ]
- SELECT * FROM `webdata` WHERE `lang` = 'cn' LIMIT 1 [ RunTime:0.000613s ]
- UPDATE `webdata` SET `view_count` = `view_count` + 1 WHERE `lang` = 'cn' [ RunTime:0.000894s ]
- UPDATE `webdata` SET `pageview` = `pageview` + 1 WHERE `lang` = 'cn' [ RunTime:0.000693s ]
- SHOW FULL COLUMNS FROM `column` [ RunTime:0.009874s ]
- SELECT * FROM `column` WHERE `id` = 127 LIMIT 1 [ RunTime:0.000701s ]
- SELECT * FROM `column` WHERE `id` = 120 LIMIT 1 [ RunTime:0.000668s ]
- SHOW FULL COLUMNS FROM `column_content` [ RunTime:0.012829s ]
- UPDATE `column_content` SET `PV` = `PV` + 1 WHERE `id` = 78 [ RunTime:0.001143s ]
- SELECT * FROM `column_content` WHERE `id` = 78 LIMIT 1 [ RunTime:0.000683s ]
- SHOW FULL COLUMNS FROM `parameter` [ RunTime:0.009709s ]
- SELECT * FROM `parameter` WHERE `column_id` = 127 ORDER BY `weigh` DESC [ RunTime:0.000513s ]
- SELECT * FROM `column_content` WHERE `id` < 78 AND `column_id` = 127 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000637s ]
- SELECT * FROM `column_content` WHERE `id` > 78 AND `column_id` = 127 LIMIT 1 [ RunTime:0.000567s ]
- SELECT * FROM `column` WHERE `pid` = 127 [ RunTime:0.000541s ]
- SELECT * FROM `column_content` WHERE `column_id` = 127 AND `com_ok` = 1 ORDER BY `top_ok` DESC,`com_ok` DESC,`weigh` DESC,`id` ASC LIMIT 3 [ RunTime:0.000636s ]
- SELECT * FROM `column` WHERE `id` = 127 LIMIT 1 [ RunTime:0.000371s ]
- SELECT * FROM `column` WHERE `pid` = 127 [ RunTime:0.000341s ]
- SELECT COUNT(*) AS think_count FROM `column_content` WHERE `column_id` = 127 AND `lang` = 'cn' [ RunTime:0.000489s ]
- SELECT * FROM `column_content` WHERE `column_id` = 127 AND `lang` = 'cn' ORDER BY `top_ok` DESC,`com_ok` DESC,`weigh` DESC,`edittime` DESC LIMIT 0,8 [ RunTime:0.000620s ]
- SHOW FULL COLUMNS FROM `link` [ RunTime:0.008520s ]
- SELECT * FROM `link` ORDER BY `weigh` DESC [ RunTime:0.000373s ]
- SELECT * FROM `column` WHERE `pc_nav` IN (1,3) AND `lang` = 'cn' ORDER BY `weigh` DESC,`id` ASC [ RunTime:0.000451s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000576s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000472s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000579s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000389s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000488s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000391s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000434s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000627s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000376s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000366s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000370s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000392s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000425s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000381s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000388s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000369s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000444s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000386s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000408s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000350s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000349s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000358s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000447s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000383s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000462s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000436s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000415s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000452s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000344s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000539s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000427s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000394s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000371s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000341s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000405s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000369s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000345s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000404s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000373s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000412s ]
- SELECT * FROM `column` WHERE `pc_nav` IN (2,3) AND `lang` = 'cn' ORDER BY `weigh` DESC,`id` ASC [ RunTime:0.000399s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000629s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000569s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000425s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000400s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000512s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000356s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000359s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000353s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000381s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000383s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000487s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000340s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000373s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000357s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000438s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000405s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000482s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000364s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000349s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000392s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000359s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000358s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000375s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000358s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000345s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000413s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000359s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000354s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000400s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000344s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000397s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000404s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000394s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000415s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000504s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000461s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000423s ]
- SELECT * FROM `column_content` WHERE `column_id` = 134 LIMIT 1 [ RunTime:0.000370s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000355s ]
- SELECT * FROM `column_content` WHERE `column_id` = 135 LIMIT 1 [ RunTime:0.000350s ]
- SELECT * FROM `column` WHERE `top_id` = 120 AND `lang` = 'cn' ORDER BY `weigh` DESC,`id` ASC [ RunTime:0.000685s ]
