发布时间:2025-02-01 11:17:46
电缆套官的型号与电缆截面相关,也与成品外径.
一般来说,电缆的截面不得大于电缆套管的内截面40%.
电缆的截面=成品外径的平方*0.7854.
电缆套官的内截面=内径的平方*0.7854.
绞肉馅绞不到上面的肉啊刀片只管下面的肉上面的肉死活绞不到啊怎么解决啊
2025-02-01 11:17:46 2025-02-01 11:17:46 2025-02-01 11:17:46 2025-02-01 11:17:46 2025-02-01 11:17:46 2025-02-01 11:17:46 2025-02-01 11:17:46 2025-02-01 11:17:46 2025-02-01 11:17:46 2025-02-01 11:17:46小区底楼的商铺要安装抽油烟机但是没用专用烟道是否违反相关法律法规的规定是那些法律法规
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