placid out-flow gas是什么意思

网络释义

用法例句

Directional Drilling for Methane Drainage in Advance of Mining;

采前瓦斯抽放定向钻进技术

Controlling measures of methane and coal dust and ventilation method in fully mechanized excavation face;

综掘工作面治理瓦斯煤尘通风方法的探索

Integrated control technology for methane in mining faces;

回采工作面瓦斯综合治理技术

The Analysis of Geological Factors to the Existence of Coal Gas in the Sunan Coal Mining Area and Xutuan Coal Field;

浅析宿南矿区和许疃井田瓦斯赋存的地质因素

Dilution process of the coal gas in the laneway with pressured-injection ventilation and extracted methods had been analyzed comparatively.

本文对煤矿瓦斯治理中压入式与抽吸式通风方式对掘进面附近瓦斯浓度稀释规律进行了对比分析,主要考察两种通风方式对于瓦斯析出量出现变动的适应能力。

Influence factors of mine gas hydrate formation in surfactant solution containing coal;

瓦斯水合物在含煤表面活性剂溶液中生成影响因素

Design and practices on network system of wireless sensors for mine gas monitoring and measurement;

煤矿瓦斯监测无线传感器网络系统设计与实现

Design on wireless sensor network for mine gas measurement;

煤矿瓦斯监测无线传感器网络系统设计

Key issues of coal and gas co-mining in thick seam;

厚煤层煤与瓦斯共采的关键问题

Theoretical research on propagation law of acoustic emission wave in coal seam containing gas;

含瓦斯煤体声发射应力波传播规律理论研究

Prediction of gas emission time series based on W-RBF;

基于W-RBF的瓦斯时间序列预测方法

Relation between the circle air and gas concentration;

循环风与瓦斯浓度的关系

Forecast of coalmine gas concentration based on the immune neural network model;

基于免疫神经网络模型的瓦斯浓度智能预测

The paper introduced composition,working principle,design of hardware and software of a monitoring system of gas concentration based on AT89C2051 single-chip microcomputer and VB6.

0的瓦斯浓度监测系统的组成、工作原理及硬件、软件设计方法。

Discussion on gas control measure for one pass cutting coal mining face of high gas coal mine in Jincheng mining area;

高瓦斯矿井一次采全高综采工作面瓦斯治理

The study on the Numerical Simulation and determination of parameters in gas control at the upper corner in U-Type ventilation face;

回采采空区上隅角瓦斯治理的数值模拟与参数确定

A gas control model for the ultra soft and low permeability seams with complicated geological conditions was set up.

淮北矿业集团根据不同煤层瓦斯赋存条件,研究了不同的治理方法,建立了复杂地质条件极松软低透气性煤层瓦斯治理模式,采取了地面钻孔预抽技术、开采保护层技术、底板巷道穿层钻孔预抽、六步法多循环石门揭煤技术、高瓦斯弱突出煤层本层解突技术等多种有效措施,并建立瓦斯治理技术规范,实现了高瓦斯突出煤层的安全高效开采。

Design and application of horizontal long borehole for gas drainage in seam roof;

煤层顶板瓦斯抽放水平长钻孔的设计与应用

Mechanism and application research of gas drainage in high level drainage tunnel by water sealing system;

水封式高位抽放巷道瓦斯抽放机理和应用研究

A preliminary study on water sealing tunnel drainage technology for gas drainage;

水封式巷道瓦斯抽放技术探讨