水面下的

" 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。

A swimming stroke in which a person lies face down in the water and extends the arms in front of the head, then sweeps them both back laterally under the surface of the water while performing a frog kick.

蛙泳泳者脸朝下浸入水中，把两臂伸向头的前方，然后在水面下从侧面把两臂收回，同时象青蛙一样蹬脚的一种泳姿

Green turf sloped down to either edge, brown snaky tree-roots gleamed below the surface of the quiet water, while ahead of them the silvery shoulder and foamy tumble of a weir, arm-in-arm with a restless dripping mill-wheel, that held up in its turn a grey-gabled mill-house, filled the air with a soothing murmur of sound, dull and smothery, yet with little clear voices speaking up cheerfully out of it at intervals.

蛇一般曲曲弯弯的褐色树根，在幽静的水面下发光。前方，是一座高高隆起的银色拦河坝，坝下泡沫翻滚。相连的是一个不停地滴水的水车轮子，轮子上方，是一间有灰色山墙的磨坊。水车不停地转动，发出单调沉闷的隆隆声，可是磨坊里又不时传出阵阵清脆欢快的小嗓说话声。

The distance between the head of a recording device and the surface of the recording medium.

他在20多年里反复描绘这座池塘，记录下了水面反光的细微变化。

WHITTIER, Alaska - Fifty feet down in the cold waters of Smitty's Cove, a concrete paradise is being built for some of Alaska's most unusual creatures.

在 Smitty海湾寒冷水面下50公尺，正在为阿拉斯加一些最稀有的生物，建造一个混凝土乐园。

In this picture, you can see some white stuffs underneath the water.

在此照片中，你可以看到一些水面下白色的东西。

The sky Fu of his facing garden pond descended center of palm, a few slices moxa grass which take to burn bright trace remnants leaf floated to fall in to go to, think again is the sweet flower crash of the fish presses near to come over right away-immediately and dissatisfiedly spread go to, at pure deeply such as under the surface of mirror show the glorious scale of miscellaneous color.

他向着池塘的上空俯下了手心，几片带着烧灼痕迹的艾草残叶飘落下去，以为又是香甜花蕊坠下的鱼儿马上凑近过来--随即不满地散去，在清透如镜的水面下炫耀着杂色的锦鳞。

By the time you get to 2 kicks, you'll probably not be able to count the kicks, it's more of a constant kick with the lunging, or pressing down farther with the head and lead arm to make sure you actually go BENEATH the surface.

当你开始2次腿时，你可能就顾不上数踢腿数了，只需要不断踢腿向前扑，或向下压头部和前伸的手臂，以保证你是在水面下。

A broad expanse of the river was turned to blood;1 in the middle distance the red hue brightened into gold, through which a solitary log came floating black and conspicuous;2 in one place a long, slanting mark lay sparkling upon the water; in another the surface was broken by boiling, tumbling rings, that were as many-tinted as an opal; where the ruddy flush was faintest, was a smooth spot that was covered with graceful circles and radiating lines, ever so delicately traced; the shore on our left was densely wooded, and the somber shadow that fell from this forest was broken in one place by a long, ruffled trail that shone like silver; and high above the forest wall a clean-stemmed dead tree waved a single leafy bough that glowed like a flame in the unobstructed splendor that was flowing from the sun.

不远处红光闪成金黄；孤零零的一根原木在河中漂浮而来，呈一线醒目的黑色；河的一处，一条长长的斜影横落在水面上，闪闪烁烁；另一处，水面被翻滚的水波打碎，仿佛蛋白石放射的斑斓色彩；红彩最淡处是一片平静的水面，覆盖着优雅的环形和放射状的波纹，细腻如绘；河左岸是一片浓密的森林，一条长长的崎岖小径划破树林的一片荫翳，闪闪如银；一株光秃秃的枯树高耸于密林之上，仅剩的一杆青枝随风摇曳，像火焰闪耀在阳光洒下的一览无遗的壮美之中。

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。