step – phrases

Terms for subject Communications containing step | all forms | exact matches only

English	Chinese
pole step	上杆脚板〔钉〕
speed step automatic block	速差式自动闭塞
step-by-step telephone switching system	步进制电话交换机
two-step relay	两级〔两阶段，二级动作〕继电器
voltage step-down of signal	信号机降压