The paper presents an experimental study on the back-attack phenomenon in underwater supersonic gas jets.

对水下超声速气体射流的动力学行为进行了实验研究。

youdao

The bear moved back toward the forest, before returning for another attack — the first time I felt panic.

这只熊向森林走去，然后又回来再次攻击——这是我第一次感到恐慌。

youdao

The bear moved back toward the forest, before returning for another attack.

那头熊退回到森林中，然后再回来发动另一番攻击。

youdao

He survived an excellent back-heeling attack from Andrew Carlile before twisting to win, and when there had to be a wrestle-off for third and fourth place, he repeated his feat.

BBC: SPORT | Other sport... | Cumberland wrestling round-up

Yachvili converted and before he added a penalty Dragons full-back Martyn Thomas launched a daring counter-attack that ended in disappointment as he sent out a poor pass.

BBC: Newport Gwent Dragons 8-26 Biarritz Olympique

The usually reliable Carter lost possession near the Wallabies try-line and on the counter attack, full-back Beale sprinted two-thirds of the field, running at an angle to stretch the New Zealand defence and touch down.

BBC: New Zealand 20-10 Australia