水面

Usually just their big nostrils appeared for a gulp of air as they foraged on sea grasses or swam slowly to greener underwater pastures.

通常，当它们在水下寻找海草或者慢慢地游向一些更绿的水下牧草场时，它们长长的鼻孔会伸出水面来换气。

Surf frosts the sparkling surface of the Caribbean Sea off the coast of Belize in Central America.

海浪霜冻，波光粼粼的水面加勒比海附近的海面上的伯利兹在中美洲。

Do you know why male fighting fish make many froths on the water surface?

为什么雄斗鱼会做那么多泡沫在水面呢？

Equipped with echolocation and gaffing claws, the greater bulldog bat of Panama's Barro Colorado Island can detect the hair-thin fin of a fish breaking the water's surface, a useful skill in a forest full of bat competitors.

生活在巴拿马巴洛科罗拉多岛地区的牛头犬蝙蝠，它们拥有回声定位能力和尖利的爪子。它们能发觉薄如发丝的鱼鳍触碰了水面，在同类竞争者众多的森林中这是一项十分有用的技能。

Equipped with echolocation and gaffing claws, the greater bulldog bat of Panamas Barro Colorado Island can detect the hair-thin fin of a fish breaking the waters surface, a useful skill in a forest full of bat competitors.

生活在巴拿马巴洛科罗拉多岛地区的牛头犬蝙蝠，它们拥有回声定位能力和尖利的爪子。它们能发觉薄如发丝的鱼鳍触碰了水面，在同类竞争者众多的森林中这是一项十分有用的技能。

82KHz. Myotis fimbriatus forages or gleans middle-sized insects mainly including Diptera in a relatively simple circumstance such as the edge of light forest, the upper space of farmland, grassland and water surface.

毛腿鼠耳蝠在疏林边缘或上空，田地、草地或水面上空等并不太复杂的环境中进行近距离空中捕食或掠食，捕食对象是中等大小的静止猎物，主要是双翅目的昆虫。

Think you'd like a car that glides across water?

想要一辆水面滑行的车？

Illustration: This was shot in a sunshine day moening, I waited for a long long time, two gooses flight from the water surface, so elegant and swift, in water they also so easyly; so lively rest; wit.

图片说明：这是冬日的一个晴天上午所拍，我在寒风中等了好长好长时间，终于等到了两只大雁从湖中水面飞出来，你看飞起来的大雁多么灵巧多么优雅，它们在水中也是从容悠闲、机动灵活的。

The steam acts upon the surface of the water in the receiver, which surface only being heated by the steam, it does not condense, but the steam gravitates or presses with an elastic quality like air, and still increasing its elasticity or spring, until it counterpoises, or rather exceeds, the weight of the column of water in the force pipe, which then it will necessarily drive up that pipe; the steam then takes some time to recover its power, but it will at last discharge the water out at the top of the pipe You may see on the outside of the receiver how the water goes out, as well as if it were transparent; for, so far as the steam is contained within the vessel, it is dry without, and so hot as scarcely to endure the least touch of the hand; but so far as the water is inside the vessel, it will be cold and wet on the outside, where any water has fallen on it; which cold and moisture vanish as fast as the steam takes the place of the water in its descent.

&&蒸汽行为后，水面在接收端，而只是表面被加热水蒸汽，它不浓密，但相互依赖蒸汽或印刷机具有弹性质量一样的空气，并仍在增加其弹性，或春天，直到它网，而超过重量栏水警队管道，然后它一定会推到管；蒸汽则需要一段时间来恢复其权力，但它会在最后排放水出顶管，你可以看到外面的接收机如何当然水，以及如果它的透明度；，目前为止由于蒸汽载船，它是未经干燥，所以作为热几乎要忍受至少触摸的手；但到目前为止，由于水内的船只，将寒冷和潮湿对外面，那里没有水落下；其中寒冷和水分消失快蒸汽需地方水在其后裔。

It is shown by the results of observation and analysis on the tests of water collection and saving utilization of hillside orchards located in the gullied rolling loess area that to build two encircling water collection works in the orchard to store excess rain.

对黄土丘陵沟壑区山地果园集流节水利用的定位试验观测和分析的结果表明：将果园修成&回&字形集水面，将超渗产流蓄贮，既可以减少果园水土流失，又能满足果树旱季用水；采用地膜覆盖、秸秆覆盖、绿色覆盖措施可以有效地减少地面蒸发，调节地表温度，增加土壤有机质，达到高效利用雨水资源的目的。

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。