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  • 示波器的频率计和测量项里的频率有什么差别

示波器的频率计和测量项里的频率有什么差别

频率计是通过硬件计算的，精确到6位数；测量项里的频率计算的是示波器屏幕内的信号，只能精确到4位。

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基本 文件 流程 错误 SQL 调试
  1. 请求信息 : 2026-08-07 06:47:39 HTTP/1.1 GET : https://www.micsig.com.cn/faqEgr/14.html
  2. 运行时间 : 0.040418s [ 吞吐率：24.74req/s ] 内存消耗：947.40kb 文件加载：180
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=a496041a33e9a69ca6e6a4109b68c921
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  129. D:\wwwroot\new.micsig.com.cn\vendor\yzncms\think-addons\src\addons\dispatch\Controller.php ( 4.65 KB )
  130. D:\wwwroot\new.micsig.com.cn\vendor\topthink\framework\src\think\route\Dispatch.php ( 11.32 KB )
  131. D:\wwwroot\new.micsig.com.cn\app\common\middleware\CommonInit.php ( 1.67 KB )
  132. D:\wwwroot\new.micsig.com.cn\extend\form\Form.php ( 4.22 KB )
  133. D:\wwwroot\new.micsig.com.cn\addons\cms\controller\Index.php ( 9.61 KB )
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  138. D:\wwwroot\new.micsig.com.cn\app\admin\model\Lang.php ( 1.29 KB )
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  149. D:\wwwroot\new.micsig.com.cn\vendor\topthink\think-orm\src\db\concern\AggregateQuery.php ( 3.26 KB )
  150. D:\wwwroot\new.micsig.com.cn\vendor\topthink\think-orm\src\db\concern\ModelRelationQuery.php ( 19.29 KB )
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  160. D:\wwwroot\new.micsig.com.cn\vendor\topthink\framework\src\think\event\LogRecord.php ( 1.02 KB )
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  163. D:\wwwroot\new.micsig.com.cn\app\common\library\Auth.php ( 13.55 KB )
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  1. CONNECT:[ UseTime:0.014427s ] mysql:host=127.0.0.1;port=3306;dbname=new_micsig_com_c;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `eb_lang` [ RunTime:0.005067s ]
  3. SELECT * FROM `eb_lang` WHERE `site` LIKE '%//www.micsig.com.cn%' AND `status` = 1 LIMIT 1 [ RunTime:0.000190s ]
  4. SELECT * FROM `eb_lang` WHERE `is_main` = 1 AND `status` = 1 LIMIT 1 [ RunTime:0.000105s ]
  5. SHOW FULL COLUMNS FROM `eb_faqs_cn` [ RunTime:0.003880s ]
  6. UPDATE `eb_faqs_cn` SET `hits` = `hits` + 1 WHERE `id` = 14 [ RunTime:0.002605s ]
  7. SELECT * FROM `eb_faqs_cn` WHERE `catid` = 18 AND `id` = 14 LIMIT 1 [ RunTime:0.000265s ]
0.043543s