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- toll switching hierarchy 长途交换体系结构
- "In the telephone system, the use of fiber optics for interconnecting central offices within a metropolitan area and for lower levels in the switching hierarchy is still increasing rapidly. 在电话系统中，主要城市地区中心交换局间互连和低级交换中采用光纤的势头仍然迅速发展。
- inter-provincial toll switching center 省间长途交换中心
- international toll switching system 国际长途电话交换机
- demand basis toll switching system 立接制长途电话交换机
- provincial toll switching centre 长途电话省中心局
- interprovincial toll switching center 省间长途交换中心
- semiautomatic toll switching system 半自动长途电话交换机
- automatic toll switching repeater 自动长途电话中继器
- international toll switching service 国际长途电视交换业务
- A toll is charged for the use of the expressway. 在那条高速公路上行驶需付通行费。
- Toll switch board for semi-automatic operation 长途半自动接续台
- I groped for the light switch in the dark room. 我在黑暗的房间里摸索着找电灯开关。
- common-battery toll switch board 共电式长途电话交换机
- The war took a heavy toll of human life. 这次战争夺去了许多人的生命。
- The toll charged for a ferry passage. 摆渡费乘坐渡船而征收的费用
- The death toll has risen to 200. 死亡人数已上升到两百人。
- The death toll mounted (to 100). 死亡人数上升(至100).
- Years of hardship and neglect had taken their toll. 多年的劳累和疏于保养损害了他们的健康。
- I grope for the light switch in the dark room. 我在黑洞洞的屋里摸索著寻找电灯开关。
