The impervious PVC geomembrane liner is deployed over the dam face and anchored by welding to the PVC flaps.

在坝面铺上防渗PVC土工膜衬垫，并与PVC膜片焊接固定在一起。

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It was theorized with a high degree of probability that the change in period was due to the nonlinearity of the hydrodynamic pressure acting on the upstream face of the dam.

据推论最大可能性是在那一时间段非线性水压作用于坝体上游面所造成的差别。

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The kangaroo held the dog under water at a dam near Melbourne and left deep lacerations across the 49-year-old owner's face and body when he risked his neck to save his pet.

这只袋鼠在邻近墨尔本的一座水坝把这只狗压到水面下，四十九岁的饲主冒着生命危险去抢救爱犬时，脸和身上都被袋鼠严重抓伤。

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Holding back an enormous reservoir, the dam was built in the face of strong opposition from critics who gave warning, among other things, that it would be vulnerable to earthquake damage that might cause disastrous floods.

ECONOMIST: China