Standard practice for assembly and placement of double - twisted wire mesh gabions and revet mattresses 双扭线筛网石筐和护堤垫的组装和放置的标准规程
Pvc standard specification for double - twisted hexagonal mesh gabions and revet mattresses metallic - coated steel wire or metallic - coated steel wire with poly vinyl chloride coating 双层和扭转网眼金属筐和护墙垫金属和涂层钢线或聚氯乙烯
2 . ns - 4688tests bnc , rjh and rj45 ; ns - 468 tests rj 11and rj45 ; ns - 468n tests rj45 and bnc , st - 248 tests rj45 and bnc , st - 248 tests rj45 and bnc . ii . test of double - twisted cables ; switch on the power . s is slow and remote tester . the lights of the main tester will turn on . sequently from 1 to g 3在接线正确的情况下,则主测试器指示灯和远程测试器指示灯从1至8顺序逐个闪亮并循环,若gnd连线,则指示灯从1至g按顺序逐个闪亮。