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So in total water resources there is deficient and also hard to allocate. My paper studies the theory and practice of the utilizable quantity of water resources, water resources carrying capacity , the water demand quantity by production Jiving and ecology and of reasonable allocation. The main content is as follow:1. An evaluation on water resources and its present exploitation.

本文对水资源可利用量、水资源承载能力、三生需水量和合理配置的理论和实践进行了探索，主要内容如下： 1、水资源及其开发利用现状评价。

Water jet machining is a special machining method using high pressure high speed water(pure water or water with additives) to impact the wor kpiece with the action of suspended abrasive in the water for cutting, pouching, crushing or surface material removal.

水射流加工是一项特种加工方法，采用高压高速水冲击工件，在水中悬浮磨粒的作用下，进行切割、穿孔、破碎或表面材料去除。

In process of water supply of rural water conservancy project, via often can encountering water cost is defaulted and do not make the case that water expends, serious when the normal operation that still can affect water supply unit procrastinates even break down.

在农村水利工程供水过程中，经常会碰到水费拖欠和不交水费的情况，严重时还会影响到供水单位的正常运营甚至拖垮。

After water-improving,the daily per capita water consumption increased by 40 L averagely.The frequency of washing clothes increased sharply.The peasants who bathed or shampooed one time at least every week increased to 98.79%(after water-improving)from 82.45%(before water-improving).Compared with after water-improving,the rate of informants who thought indoor environment,kitchen sanitation and lavatory sanitation improved apparently was 98.23%,96.56%and 86.28%separately.

改水后人均日用水量平均增加了40升，每周最少洗澡、洗头一次的农民由改水前的82.45%上升到98.79%，换洗衣服的频率也大大提高，有98.23%，96.56%，86.28%的被调查者认为其居室环境、厨房卫生和厕所卫生较改水前有明显改进。

ARSX / ARSH series of micro-exhaust valve ARSX / ARSH series in general, the water contains about 2VOL% of dissolved air in water during the air released from the water constantly, gathered at the high point of pipeline, and forms Air Bag to make water Plug Valves With Single Or Double Flush more difficult, the system's water capacity could be reduced by about 5-15%, therefore.

ARSX/ARSH系列微量排气阀ARSX/ARSH 系列在一般情况下，水中约含2VOL%的溶解空气，在输水过程中，这些空气由水中不断地释放出来，聚集在管线的高点处，形成空气袋使输水变得困难，系统的输水能力可因此下降约5-15%。

Electroplate waste water include, include cyanogens waste water, include chromium waste water, heavy metal waste water and sour alkali waste water generally.

电镀废水一般包括含氰废水、含铬废水、重金属废水及酸碱废水。

In accordance with the problems such as lower cooling effect and corrosion of the water treatment of the cooling water system of ammonia condenser ,the water treatment program of the water quality was optimized,and the water treatment effect before and after the program were summarized.

针对氨冷凝器冷却水系统水处理存在的冷却效果差和腐蚀问题，提出水质处理的优化方案，总结了优化前后的水处理效果，结果表明：使用新方案后，氨冷凝器的冷却效果得到明显的改善，冷凝排气压力降低，氨排压4机运行时为1。

Company's main products are including: complete sets of equipment, water treatment, pure water, mineral water filling production line, three in one filling machine, bottle blowing machine, mold, commercial, household water purifier dispenser, direct drink machine, water machine and other related products.

公司现主要产品包括：水处理成套设备，纯净水、矿泉水灌装生产线，三合一灌装机，吹瓶机，模具，商用、家用净水器饮水机，直饮机，纯水机及相关配套产品。

Based on water balance model, the change of figure coefficients of infiltration water and surface water storage under border irrigation was analyzed. The power index of movement distance and time has little influence on the figure coefficient of infiltration water in the course of surface water movement, which can be substituted by a stable value.

该文依据水量平衡模型，分析畦灌下渗水形状系数、地表储水形状系数的变化规律，结果表明下渗水形状系数受地表水推进过程中的推进距离和时间的幂指数影响很小，可用一个稳定值代替，由此建立了基于水量平衡原理的畦灌水流推进简化解析模型。

With regard to your situation, you said it is their own filter, if so, better not use such water to feed the baby and the risk of trouble burning point of boiling water it, half Add boiling water pot insulation, some in cold water tank , baby drink, then a mixed hot and cold water can be a

至于你的情况，你说的是自己过滤的吧，如果这样的话，最好别用这样的水喂孩子，不嫌麻烦烧点开水吧，一半放入开水壶里保温，一些放在冷水罐里，孩子要喝的话，冷热水一混就可以了

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。