a watertight seal.
防水封口胶带。
a watertight seal.
防水封口胶带。
a watertight alibi; a watertight contract.
无懈可击的借口;严的合同
All double bottom is watertight and oiltight. Compressed air testing and water-pressure tests can be carried out according to the classification society and by Owner's representative.
所有双层底为水和,应按规范要求由船东代表进行水压或气试验.
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