two wire system 双线制 ; 两线制 ; [计] 双线系统 ; 二线制
two-wire system 双线系统 ; [电] 二线制 ; 两总线
direct current two- wire system 直流二线式
negative grounded DC two-wire system 直流负极接地双线制
direct current two-wire system 直流二线式
asymmetric two-wire system 不对称两线系统
single-phase two-wire system 单相两线制
asymmetrical two-wire system 非对称两线系统
Negative earth DC two-wire system 直流双线负极接地系统
Large main compartment with steel wire mesh compression system and two large inside lid zip mesh compartments.
大型主舱与钢丝网压缩系统和两个大型拉链网车厢内盖。
In 1874 he invented and sold to Western Union a system by which four messages could be sent over one wire at the same time, two in each direction.
1874年他发明并售给西联电讯公司一种装置，用了它可以在一根电线上拍发四份电报，即从每一方向可同时拍发两份电报。
When a fault occurs on one phase of a 3-phase, 4-wire system, the other two phases rise in voltage relative to ground (about 20%).
当故障发生在3相4线系统中的一相时，其它两相的对地电压就升高（约升高20%）。 好评（0）
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