crossbar automatic telephone exchange,crossbar automatic telephone system
相关英语词汇推荐
- rise and fall
- master link,master rod; main connecting rod,
- major
- quality conformance inspection
- principal traffic route
- cargo lamp
- British Insurance Group
- general speed
- Period of Container Leasing
- Lunar probe
- damping effect
- assigned
- lighting and ventilating shaft
- general delivery
- quotation
- running out system
- triple treat sonar
- topgallant
- oil window
- broad on the starboard quarter