所有双层底为水密和油密，并应按规范要求由船东代表进行水压或气密试验。

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.

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必要的地方，在管子顶部安装油密或水密青铜测深管头或测深甲板件，同时标注舱室名称。

Pipes to be fitted with oil or watertight bronze sounding cap or sounding deck piece where necessary on tops, and the name of the tanks to be marked on.

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本文作者就他们在工作实践中总结出来的汽车发动机喷油器故障的简单判定及油密试验方法作了实用而简要的介绍。

This paper makes a brief introduction on how to find out the trouble point of automotive motor's injecting nozzle by using sealing nozzle.

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