test on tightness

The test on tightness of large caliber and long distance pipes for central heating;

集中供热大管径长距离管道严密性试验

To counter the problem that there is not a good method to directly measure the quantity of air leaked into the vacuum system of steam turbine, it is proposed in this paper the soft-sensing technique for the measure of air leakage into vacuum system based on vacuum system tightness test of steam turbine and combined with BP neural networks.

针对目前汽轮机真空系统漏气量的直接测量一直没有好的方法的问题,文中提出一种基于真空系统严密性试验,并结合BP网络的漏入真空系统空气量的软测量方法。

The entry-exit inspection stations throughout the country should raise the awareness of the officers and soldiers, strengthen and enhance the organizations, so as to meet the requirement of more affinity service and more close administration and control.

确保奥运会安全、顺利、成功举办,是当前压倒一切的政治任务,全国边防检查机关广大官兵要提高思想认识,加强组织领导,加大各项工作力度,真正做到"服务更加亲切,管控更加严密",推动边检服务工作再上新台阶。

Measures to improve the tightness of air-duct made of galvanized sheet;

镀锌板风管严密性的改进与提高措施

ACC tightness is one of the key targets to examine the power plant unit,it directly influences the units of economic operation.

汽轮机真空系统严密性是考核汽轮发电机组的主要经济技术指标之一,它直接影响机组的经济运行。

The influence of vacuum system tightness of 200 MW unit on the unit operation is discussed.

对于200MW机组真空系统严密性对机组运行造成的影响进行探讨,介绍真空系统查漏工作的正确思路,分析查漏过程中应注意的问题,并根据作者的实践经验介绍工作中可能存在的技术难题。