air entraining agent是什么意思

用法例句

Dazhangtuo underground gas storage is a matching construction of Shaanxi-Beijing gas transmission pipeline.

大张坨地下储气库是陕京输气管道的配套工程,保障天然气的调峰需要和供气安全,是由一个正在进行循环注气开发的凝析气藏改建而成的。

For an existent gas transmission pipeline network system, it is necessary to conduct adaptability analysis to accommodate it to the gas transmission technologies, as a result of the continuously changing resources and markets.

对于一套现存的输气管网系统,由于资源、市场的不断变化,使得现有输气管网系统有可能不适应输送工艺的要求,需要对管网进行适应性分析。

Based on natural gas transmission pipelines in Sichuan and Chongqing, this article introduces the method of environmental risk assessment on natural gas transmission pipelines.

结合川、渝天然气输气管线情况 ,对输气管道环境风险评价方法进行了介绍和讨论。

The relationship between CTOA and crack_arrested length,the effects of operating pressure and wall thickness of pipeline on dynamic fracture and arrest of the west_east gas transmission pipeline in China were analyzed by the use of.

介绍了一种近年来新发展的输气管线断裂控制参量———裂纹尖端张开角 (CTOA)的计算模型及方法。

Studies on Pressure of Ice Blocked Gas Pipeline;

冰阻状态下输气管线压力变化规律的研究

Using the finite element theory, this paper is concerned with, the dynamic characteristics of a cable-stayed pipe bridge of Zhongqing gas pipeline spanning Fujiang caused by the liquid column accumulation while pigging.

本文利用有限元理论，分析了中青输气管线涪江跨越管桥，在清管时积液柱通过管 桥时的动态力学特性。

Application of a practical calculating method in determining risk factors' weight of gas pipeline;

不确定层次分析法在确定输气管道风险因素权重中的应用

Least Square Method for Evaluating Pipe Roughness of Gas Pipelines;

输气管道当量粗糙度的最小二乘算法

Design and construction of dewatering and drying process of sub-sea gas pipelines in DF 1-1 gas field;

东方1-1气田输气管道除水与干燥工艺设计及施工

Evaluation on the safety of natural gas pipeline impacted by dangerous rock fall;

危岩体坠落冲击对输气管道影响的分析评价

The constitution and features of Citect is intruduced in this paper,and the application in the SCADA system for Shan－Yin natural gas pipeline is presented in detail.

本文介绍了Citect工控组态软件的组成及特点，并对其在陕银输气管道SCADA系统中的应用进行了较为详细的说明。

Risk management for gas stations;

天然气输气站场的风险管理

Risk management of natural gas stations is a new and developing subject.

天然气输气站场的风险管理技术研究是风险管理中的一个崭新的领域。

The fuzzy judgment method for determining the severity of gas transportation pipeline failure consequence;

确定输气管道失效后果严重度的模糊评判方法