水循环

Only in a local area of the water cycle as water circulation.

仅在局部地区进行的水循环称为水的小循环。

Because of the existence of natural hydrological cycle, water is considered a recyclables natural resource.

由于地球水循环的存在，水本来可以被认作是一种可再生资源。

But for all of those theories, one needs to understand the water cycle: how much water there was, where it went to, and where it's at now.

但是，在所有的理论中，人们应该弄清的是水循环：曾经有过多少水，流向了哪里，现在在哪里。

The main content of course includes: the water cycle in the earth; the deposited of underground water; the physical characteristics and chemical components of underground water; the underground water of different imbed conditions; the supply, drainage and flowoff of underground water; the dynamic and balance of underground water; underground water in different mediums; the calculation of underground water movement; the basic knowledge of Water Statics; underground water resource; The environment problems of underground water in hydro-engineering.

主要内容有：地球上的水循环，地下水的赋存，地下水的物理性质及化学成分，不同埋藏条件的地下水，地下水的补给、排泄和径流，地下水的动态和均衡，不同介质中的地下水，地下水运动计算，水静力学基础，地下水资源，水利工程中地下水的环境问题。

Lucubrating the change rule and quantitative relation of urban water circulation under the influence from human action, is the feature of this article.

本文的特色就在于深入研究人类活动影响下的城市水务系统水循环变化规律和定量关系。

Through 2.8 MW water-fire tube shell hot water boiler hydrodynamic design and calculation,the result proved that the water circulation were reliable.

通过对一台2.8 MW水火管锅壳式热水锅炉进行水动力简化设计计算，并对计算结果进行分析，证明在简化设计的情况下，锅炉水循环一样安全可靠。

This study mainly focused on the water resource and environmental crisis, which are all caused by agricultural irrigation in Inner Mongolia irrigation area. Based on the balance of total water quantity between ground water, underground water and soil water, a study was made on the water quantity varieties in the headraces and offtakes, and the affection of the water cycle under the human activities was quantitively caculated.

针对引黄灌区所面临的水资源问题及灌溉引起的环境问题，以内蒙古河套灌区为研究对象，从灌溉引水、用水、排水之间的转化关系为切入点，以地表水、土壤水和地下水之间的水量平衡理论为基础，定量研究河套灌区在人类影响条件下的水循环特征。

This study mainly focused on the water resource and environmental crisis, which are both caused by agricultural irrigation in the Inner Mongolia irrigation area. Based on the balance of total water quantity between ground water, underground water and soil water, a study was made on the water quantity in the head races and offtakes, and the effect of human activities on the water cycle was quantitatively calculated.

针对引黄灌区所面临的水资源问题及灌溉引起的环境问题，以内蒙古河套灌区为研究对象，从灌溉引水、用水、排水之间的转化关系为切入点，以地表水、土壤水和地下水之间的水量平衡理论为基础，定量研究了河套灌区在人类影响条件下的水循环特征。

Gray water after treatment will be supplied to boilers of a power station nearby to realize water recycling.

处理后的中水将给附近的发电厂提供冷却补给水，实现真正的水循环利用

This paper analyses effects of urbanization to hydrologic cycle, hydrologic process, water resource, and water evironment, and puts forward corresponding countermeasures.

针对城市化对水循环、水文过程、城市水资源和水环境的影响作了详细分析，并提出了相应的对策。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。