低低的水面将干旱的盆地暴露了出来。
按照美国标准，“施琅”在水面上的防御非常低。
On the surface, Shi Lang will be all but defenseless, by U.S. standards.
它们找不到可以尽情戏水的地方，整天都可以看见它们在这片睡莲覆盖的水面之间，时而歪歪头，时而低低脑袋，小心翼翼地缓缓前行。
There was no place for them to swim, and all day they could be seen walking daintily, heads slightly aside and slightly down, across the lily-hidden water.
当他们潜到50米或更深之后，必须缓慢的回到水面，才能使他们的身体重新将压力调节到低一些的水面气压。
When they descend to 50 meters or deeper, they must return to the surface slowly, to allow their bodies to readjust to the lower surface pressure.
他又划起船来，注视着那只此刻正在水面上低低地飞掠的长翅膀黑鸟。
He went back to rowing and to watching the long-winged black bird who was working, now, low over the water.
他又回过头来划船，并注意看着那只长翅膀的黑鸟，现在，它正低低地飞在水面上准备觅食。
He went back to rowing and to watching the long-winged black bird who was working, now, low over the water.
应用于低坡度水面的近似理论来自于裘不依。
The approximate theory which applies to water tables of low slope is due to Dupuit.
这些体格硕大而优美的禽鸟在水面上成群低掠而过，我停下来欣赏着这一美景。
I stopped to watch a flock of those big beautiful birds. They flew low over the water.
螺旋桨的叶片在靠近水面上方横向效应不强，足以抵消低刀片相反的效果。
The transverse effect of the propeller blades at the top near the surface of the water is not strong enough to counteract the opposite effect of the lower blades.
本装置适用于收集水面上的油污，其结构简单，作业成本低。
The device is suitable to be used to collect oil dirt on water surface, simple in structure and low in operation cost.
本实用新型采用单排辊，过滤网带缠绕 于辊子上压滤脱水，脱水面积大，能耗低。
The utility model adopts the single row rolls and a filtering mesh belt wrapping on the roll to filter and dewater, so the dewatering area is large and the energy consumption is low.
本实用新型采用单排辊，过滤网带缠绕 于辊子上压滤脱水，脱水面积大，能耗低。
The utility model adopts the single row rolls and a filtering mesh belt wrapping on the roll to filter and dewater, so the dewatering area is large and the energy consumption is low.
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