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