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[国外标准] DS/HD 22.10 S2-2007 Cables of rated voltages up to and including 450/750 V and having cross-linked insulation – Part 10: EPR insulated and polyurethane sheathed flexible cables

chenxingwu

P:2011-03-27 14:24:34

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HD_22.10_S2-2007(英).pdf

DS/HD 22.10 S2-2007 Cables of rated voltages up to and including 450/750 V and having cross-linked insulation – Part 10: EPR insulated and polyurethane sheathed flexible cables.pdf

loop-back - 环回,反馈(一种检查线路传输性能的方法,即将信号从源点发送到目标点,而后将其返送回源点,并将返回的信号进行测量与评砧,以确定传输是否正 （0） 投诉

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