main drain是什么意思

网络释义

用法例句

Application of mine stand pump to mine water drainage in coal mining face of Jining No.3 Mine;

矿用立泵在济三煤矿工作面排水中的应用

Hollow concrete is a well performance novel road base material,and the corresponding asphalt pavement with hollow concrete water drainage substrate is a novel road pavement structure.

多孔混凝土是一种性能良好的新型道路基层材料,相应的多孔混凝土排水基层沥青路面是一种新型的路面结构。

The significance, task and three means of water drainage on cloverleaf-junction drainage are introduced.

介绍了立交排水的重要性、任务及立交排水三种方式,阐述了立交排水量的计算和设计原则。

The drainage, water intake and water conservation of paper industry;

造纸工业的排水、取水和节水

Improvement of Relayed Drainage System of Large Scale Mine Submerge Motor Pump;

大型矿用潜水电泵接力排水系统的改进

Scheme design of vertical shaft drainage system during shaft construction;

建井期立井排水系统方案设计

This article elaborated the "inductive jet" principle of air current and the application in draining water accumulated in the factory,explained the feasibility and practicability of using vacuum absorption as the power supply to drain water automatically in the enterprise.

从实际应用的角度出发,阐述了气流“引射”原理及其在工厂排除积水中的应用,说明了利用真空吸附为动力源在企业中进行自动排水的可行性和实用性。

After many times argumentation and schemes choosing,we decided to pave an open channel to draining water in the footing groove to accel- erate the pump speed and ensure the displacement for increasing the excavating tempo.

南水北调中线瀑河渠道倒虹吸工程地处地质构造复杂、节理裂隙发育、地下水极为丰富地带,排降水成为影响工程进度的一个主要难题,从多种排水和降水方案中,经多次论证,确定基坑内设明沟排水,加快抽水速度,保证排水量,以提高开挖进度。

Feasibility study of coal yard drainage reuse in power plant;

火电厂煤场排水循环利用可行性研究

The main points about the design of the automatic drains in the FanGezhuang mine of the KaiLuan Group;

开滦集团范各庄矿自动化排水设计

We have researched on the central drain system and the builtin fire foam delivery system and began domestic application for large floating roof storage tank by comparing the application of the system both domestically and internationally.

通过对比国内外大型浮顶贮罐中央排水消防系统的应用 ,开展了国内的研制与应用 ,该技术的推广和应用将促进国内大型贮罐的建

The design optimum of municipal water drain checking well;

市政排水检查井设计优化

The quality control of polyethylene tube in town water drain construction;

聚乙烯管道在城镇排水施工中的质量控制