The determination of damage height of superincumbent stratum of goaf has immense meaning for safety and reasonable exploitation of coal seam under water body, building and railway.

确定采空区上覆岩层破坏高度，对“三下”煤层安全、高效开采具有重要意义。

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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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Geldenhuys added: "Only when it was attacking did I see the fin, but then I could see the whole body under the water."

海登赫伊斯继续补充道：“仅当它攻击的时候，我才看到鱼鳍，但我随后看到它在水中的整个身体。”

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That is the place where the water flowing under a swimmer's body would normally be expected to separate from her.

ECONOMIST: The turbulent world of swimming

His body was recovered by a police diver at 23:30 BST, almost four metres under the water.

BBC: Aaron Burgess Saltford Weir death was accidental