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- Application of Air Tank for the Prevention of Water Hammer in Long Distance Water Transmission Pipeline 空气罐对长距离输水管道水锤的预防效用
- prevention of water hammer 水锤防护
- Harm and Prevention of Back Water Hammer 反水锤的危害及防止
- Our Tilting Disc Check Valves are designed for quick opening and closing in severe service applications and the elimination of water hammer. 我们的翻转式阀瓣止回阀专用于在严酷的应用环境下迅速开启和关闭,避免出现水锤现象。
- In order to solve the great starting current and occurrence of water hammer in pump unit, the soft starting controller of motor based on PIC microprocessor was proposed. 为解决水泵机组起动电流大和易出现水锤现象的问题,提出一种以PIC单片机为控制核心的电动机软起动控制器。
- This design not only rotate speed of electromotor and pipeline pressure can be homeostasis, but also prevents the phenomena of water hammer and makes equipment safety. 该设计可使电机转速与管道压力达到动态平衡，既防止了水锤的产生，又保护了设备的安全。
- Mulch trickle irrigation results not only in the diminution of soil water evaporation, but also in the prevention of water percolating into deep soil. 膜下滴灌技术不仅可减少地面水分蒸发,还可以避免深层渗漏。
- This paper expounds some sorts of water hammer in sprinklingirrigation system, base theory and method for water hammer analysis, and boundary condition of spray nozzle and complicate pipe network. 本文阐述了喷灌系统水锤的分类及其数值模拟的基本理论和方法，介绍了几种适用的水锤防护技术。
- They have begun to do the prevention of crime. 他们已经开始防止犯罪行为。
- He lifted a pail of water from the ground. 他把一桶水从地上提了起来。
- The principle of WKS in water-preserved mining has been successfully applied to the disaster prevention of water inrush from roof and floor in working face. 保水采煤的隔水关键层原理在采场顶底板突水灾害防治中得到了成功应用。
- The VSA/VSC drives have efficient starts and stops, which eliminate the risk of water hammer and other damage, lessening the need for expensive motor-controlled valves, Emotron says. 这种产品在与节流阀阀或者调节阀对比中体现出了良好的节能效果。
- Prevention of or protective treatment for disease. 预防对疾病的防止或保护性处理
- A dash of water in his face will revive him. 向他脸上泼水能使他苏醒。
- The butterfly valve closing procedure of water transfer work from Fengjiashan Reservoir to Baoji city is optimized for water hammer protection,and the concept of air valve set is proposed. 提出了空气阀组概念,水锤分析表明,采用空气阀组和两阶段关闭蝶阀联合作用可有效地防护长距离加压输水工程中水锤危害。
- The pipe burst and a spout of water shoot out. 水管破裂了，一股水喷了出来。
- The key to prevention of water environment pollution at present should be the research of the mechanism and measures for control of eutrophication and waterbloom in lakes. 提出当前研究水环境污染防治的重点应关注湖泊富营养化发生及水华暴发机理与调控研究。
- A cloud is a condensation of water vapour. 云是由水蒸汽凝缩而成的。
- The flower languished from lack of water. 花因缺水而枯萎。
- The man poised a bucket of water on the head. 那个男人头上平稳地顶着一桶水。
