下水

The physical geography environment, the forming and distributing of the water resource in Ali area of Tibet are analyzed, basing on the difference of the groundwater resource forming environment, the water circulation system can be divided into alluvium and diluvium groundwater of rivervale in south and flows-in lake basin groundwater in north.

成都理工大学环境与土木工程学院，成都610059中文摘要：分析了西藏阿里地区自然地理环境、水资源形成和分布及其利用状况，基于区内地下水资源形成环境条件的差异，本区地下水资源体系可分为南部河谷冲洪积层地下水系统和北部内流湖盆地下水系统。

Once you're ready, start by dipping your toe in the water.

一旦你准备好了，先用指头试下水。

He changed into another diving suit and went down.

他换上另一件潜水衣又下水了。

With the coach, there is no danger. Having heard of this, I felt nothing to be scared of. When I got to the diving place, the coach dressed me with a tight diving suit and equipped me with a heavy oxygen cylinder.

听完这话，我感到也没有什么好怕的了，到了潜水的地方，教练为我换上了那紧身的潜水服，还有那厚重的氧气瓶，并教了我一些手势后，我们就开始下水了。

A spokesman for the dockyard said they hoped to launch the first submarine within two years.

造船厂的发言人说，他们希望两年内让第一条潜艇下水。

The person who is in charge of the dockyard said they would relaunch the submarine next year.

军舰修造所的负责人说，他们将在明年使这艘潜艇再次下水。

It mainly produces series products of various specifications,including triangle valve,tap,flaor drain,wahbasin drainer,washbasin fauces,flush pipe etc.

主要生产各种型号的三角阀、水咀，地漏、面盆下水、面盆龙头、冲水管等系列产品。

Rubbish is blocking the drainpipe, and should be cleaned up.

垃圾秘结在下水管道中，应该找人来清理一下了。

A new ship was launched from the dry dock .

一艘新船从乾船坞下水。

One day, while he was out hunting, he shot a wild duck that fell into a lake. He almost drowned himself when he tried to pull it out.

有一次他去打猎，被打中的野鸭落在湖里，他下水去捞，自己差点儿也沉到湖底。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。