A.屏蔽層完整無(wú)損壞B.絕緣皮無(wú)損壞C.絕緣皮無(wú)痕跡D.屏蔽層有點(diǎn)損壞或切斷
A.無(wú)規(guī)則B.有規(guī)則C.有氣孔D.有沙礫
A.自鎖扎帶B.絕緣套管C.熱縮管D.塑料螺旋管