查询词典 drainage canal

This paper inqures into the energy equation of debis flow in drainage canal , according to the law of coservation of energy.

根据能量守恒原理，推导出泥石流在排导槽中的能量方程。

Exhaust valve is an essential auxiliary piping system components, widely used in boilers, air conditioning, oil and gas, water supply and drainage canal.

排气阀是管道系统中必不可少的辅助元件，广泛应用于锅炉、空调、石油天然气、给排水管道中。

The annual total water resources storage in the controlled main drainage canal is about 110 mm, which is about 13% of the annual precipitation.

以大沟控制蓄水进行农田水资源调控这一技术模式，是适合淮北平原区特点的解决水资源短缺和改善农田生态环境、调控区域水资源时空合理分布的有效途径。

While how to choose optimum shape and size to make the drainage canal of debris flow have the best discharging ability is a problem few people have researched both at home and abroad.

点击下列相关研究机构和相关研究者，可以直接查到这些机构和作者被《中国知识资源总库》收录的其它文献，使您全面了解该机构和该作者的研究动态和历史。

Do we need a artificial or ecological drainage canal?

光秃秃三面光的二港排水沟：是人的排水沟还是生态排水沟？

Base on the field experiments in Huaibei Plain of Anhui Province, this article analyzed the feasibility of water storage in main drainage canal and effect of regulation for surface runoff, soil and groundwater, and put forward technique parameters and mode of the water storage facility.

通过在安徽淮北平原的大田原型试验，分析了利用农田排水大沟进行控制蓄水的可行性及其对地表径流、地下水和土壤水的调控效果，提出了平原区依托大沟控制蓄水的农田水资源调控系统成套技术参数和模式。

Engineers have said they need at least a week to dig a drainage canal to reduce pressure on the dam, which is blocking the Bai He two miles upstream from the devastated town of Beichuan.

工程师估计至少需要一周时间把水闸打通，来减轻对河坝的压力。白河河坝建在破碎的北川县上游两英里的地方。

Large-scale irrigation and drainage canal system Zhanghe river old old Shahe, Wang closure of key projects, such as stem 22, the total length of 266 kilometers.

大型排灌渠系河道有老漳河、老沙河、王封干等骨干工程22条，总长度266公里。

Engineers have said they need at least a week to dig a drainage canal to reduce pressure on the dam, which is blocking the Bai He two miles upstream from the devastated town of Beichuan.

工程师估计他们至少还需要一周时间才能挖成一条排水渠，这条渠道能够给堵塞白河的水坝缓解不少压力。

Engineers have said they need at least a week to dig a drainage canal to reduce pressure on the dam, which is blocking the Bai He two miles upstream from the devastated town of Beichuan.

工程师说至少还要一个星期挖一条排水沟来减轻水坝的压力，堵塞处在白河离受灾重镇北川两里处。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐