水面

A shark's dorsal fin sticks out of the water when it swims near the surface of the ocean.

鱼靠近 海面边游的时候，它的背鳍会突出水面。

The siphon operates on the hydraulic force of the liquid rising in the dosing tank.

虹吸管是根据污水配量槽内水面上升的水压来操作的。

Rising in the dosing tank.

污水配量槽内水面上升的水压来操作的。

I looked away down-stream, and seen a black speck on the water.

有四五回，我非得用手利索地推开河岸，免得猛然撞上高出水面的小岛。

Swan because of a heavy body, so when they take off or land in the water for some distance running downfield.

因为天鹅身体很重，所以起飞时它们要在水面或地面向前冲跑一段距离。

Because of the regulation of hydroelectric power station, there are infinite influences on navigation in downstream.

在航道的整治设计中，对水面线的研究一直是一个重要课题。

Do you know that when a dragonfly skims over the water it is actually laying eggs?

而你知不知道当蜻蜓掠过水面的时候其实是在产卵呢？

" A drift net is often several kilometers long. It hangs , from floats, near the surface of the water."

漂网常常长达几公里，它悬挂在浮子上，沉入水面下不深的地方。

" A drift net is often several kilometers long. It hang s, from floats, near the surface of the water."

漂网常常长达几公里，它悬挂在浮子上，沉入水面下不深的地方。

Bayinshan Village was built up on water to have games on water in summer and have ice-sports on ice in winter. There is a 18-square-kilometer skee ground opened in the sidehill by south of the Village, a few cableways setting on between hills for limit item and adventruous driftage item on water.

巴音山庄则是在18平方公里的水面上开发了夏季水上游戏、冬季冰上运动项目；在巴音山庄以南大面积的山坡上开辟了冬季滑雪场；在山头间修建了高山溜索开展冲击极限项目；在巴音沟河干渠上开发了水上惊险漂流项目。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。