circumferentially compressible piston-ring
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- damping effect
- master link,master rod; main connecting rod,
- assigned
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- broad on the starboard quarter
- oil window
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- general speed
- topgallant
- quotation
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- rise and fall
- lighting and ventilating shaft
- major
- running out system
- principal traffic route
- quality conformance inspection
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- general delivery
- cargo lamp