This article analyzes the selection forms of protection earthed system of low Pressure switch of civil buildings, and studied construction request of guard Wire (PE) earthed system.
分析民用建筑低压配电保护接地系统的选用型式，浅论了系统的保护线(PE)接地装置施工要求。
In the gate guard system connect the wire, you can test on the induction coil, don't wait for good sense buried line after test.
在道闸门禁系统接好线时，就能够对地感线圈进行测验了，不要比及埋好地感线后才测验。
High stone walls topped with snaky concertina wire, set off at intervals by looming guard towers.
顶部装着蛇腹式铁丝网的高高的石墙，被渐渐隐现的哨塔隔开。
No perforation and dissection due to the advancement of the guard-wire or catheter, severe pulmonary thrombosis, infection of the incision or peri-operative death.
无导丝引致的穿孔、夹层，无严重肺梗死，无切口感染及术中术后死亡。
No perforation and dissection due to the advancement of the guard-wire or catheter, severe pulmonary thrombosis, infection of the incision or peri-operative death.
无导丝引致的穿孔、夹层，无严重肺梗死，无切口感染及术中术后死亡。
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