If she could just establish the time the picture had been taken, Mick would have a watertight alibi.

只要她能确定拍这张照片的时间，米克就可以有一个无懈可击的不在现场的证据。

《柯林斯英汉双解大词典》

For cases like this the system will have a watertight structures called caissons, which are based on the suction-pile technology used to emplace deep-sea moorings and foundations.

象这种情况，该系统将有个被称作沉箱的水密结构，沉箱基于用来安放深海锚定和地基的吸力桩技术。

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Housing the crew in a watertight cabin is obviously preferable, and to counter its buoyancy Polmar suggests borrowing another idea from Convair's design - floodable fuel tanks.

明显，设计一个不漏水的密闭舱体来容纳船员更为理想。

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Only time will tell if it's as watertight a proposition as it sounds.

CNN: Nano-coating provides watertight solution

It has a built-in filtered fan system for particularly hot days, and a heater which allows it to work in temperatures of around -4 degrees C (24 degrees F), plus a watertight cable system for a range of sources including HDMI, component, VGA, S-video, composite, and RF.

ENGADGET: SunBriteTV's 46-inch 4600HD all-weather outdoor LCD

We have a watertight bulkhead up there and when we opened it, water came pouring out.

CNN: STORY HIGHLIGHTS