upper pond elevation

Field and laboratory experiments were conducted to research the phosphorus adsorption by the pond sediments in the pond system in a headstream watershed.

本实验以一个源头小流域的水塘系统为例,研究了位于不同土地利用中的水塘沉积物磷吸附特征。

To evaluate accumulation and release potential of some pollutants in pond′s mud as affected by land use, four complete mud cores(0~50 cm) were collected from four small ponds with different land use in Zhejiang province, southe.

为了解不同土地利用方式下水塘底泥污染物的积累与释放特性及对水塘水质的可能影响,采用底泥全量化学分析、间隙水水质分析、水可溶性组分分析和水柱培养试验等综合方法研究了4个具不同土地利用特点的小型水塘底泥中氮磷和重金属等污染物的垂直分布规律及其释放特点。

In the aeration oxygenation experiment,the influence of temperature on oxygen transfer rate was discussed and the temperature coefficient was determined,which supplied reliable technical parameters for the aeration purifying engineering of Shang'aotang Creek.

通过对上澳塘水体的曝气充氧实验，研究了温度对氧转移速率的影响，测定了温度系数，为上澳塘水体曝气净化的工程实践提供了可靠的技术参数。

Made By Shangtang Machinery Factory, Yongjia, Zhejiang

浙江省永嘉县上塘机械厂

Functional Evaluation of the Shangtang River in Hangzhou City and Its Application Analyses;

杭州市上塘河功能评价及其应用研究

Analytical study on the 131#～134# pier beams of Shangtang overhead

上塘高架131号～134号墩梁病害分析研究

Big drops of rain splashed down on the pond.

大大的雨点落到池塘上，

There is a flock of waterfowls on the pond.

池塘上有一群水鸟。

The pond was crusted over with ice

池塘上结了一层冰。

It is like a pebble in a pond creating ripples on the surface

就像一颗在池塘水面上跳跃的鹅卵石，

Sir,please walk up and see the pond on the left hand side.

先生，请你走上去看一看左手边的水塘。

the scummy surface of the polluted pond.

被污染的池塘上满是浮渣的水面。

We can see a water wave on the surface of a pond.

我们可以看一下池塘表面上的水波。

We skate on the glassy surface of the freeze pond

我们在池塘的光滑的冰上溜冰

We skated on the glassy surface of the frozen pond.

我们在池塘光滑的冰上溜冰。

The next morning, the frog hops down the stairs and goes back to the pond.

隔天早上，青蛙跳下阶梯回到池塘里，

A big bunch of bullfrog eggs float in the pond.

一大堆牛蛙的卵在池塘上。

Tanggu is a shining pearl over the Bohai Bay.

塘沽是渤海湾上的一颗璀璨的明珠。

This pond looks very ordinary.

大牛：这方池塘看上去挺普通的啊。

At night, males call from their private pools to lure mates.

晚上,雄蛙在他的私人池塘里鸣叫,以引诱配偶.

and when he was tired, he sat down on a chair by a pool.

他太累了，在池塘边的一个长椅上坐了下来。