1.On circuit boards the distance between phase and ground should be 1.6 mm.<br />我看字面上的意思:线路板上相线与地线间的距离应为1.6mm。<br />这个phase和ground一般是指AC220v的火线与零线还是别的如DC24V的电源端与地端??<br />2.We otherwise note that cabling is good with protective hose.<br />这句该这么理解呀?? |
|