我们必须有效地减少向大气排放瓦斯，保护人类赖以生存的有限空间。
We must effectively reduce the discharging volume of gas into the air, to protect the limited space on which human beings depend to live.
介绍了盲巷排放瓦斯的常用方法及注意事项，对参加排放瓦斯人员具有借鉴价值。
Introduced a blind lane to exhaust the in common use method and regulation of the gas, exhaust gas a personnel to have value of draw lessons from towards attend.
数值分析和开挖试验表明，卸压槽卸压和排放瓦斯作用显著，合理的槽型为两帮竖槽。
Simulation and cutting test results show that pressure- relief slots efficiently relieves stress and drains out gas and the reasonable shape of pressure-relief slots is two-side slots.
数值分析和开挖试验表明，卸压槽卸压和排放瓦斯作用显著，合理的槽型为两帮竖槽。
Simulation and cutting test results show that pressure - relief slots efficiently relieves stress and drains out gas and the reasonable shape...
分析了巷道内瓦斯灾害事故发生的原因，提出了安全排放瓦斯的方法、措施和有关注意事项。
This paper analyzes on the reasons why the accidents of the gas explosion occur in the tunnel, and puts forward some methods, measures and matters needing attention of the safe discharge of the gas.
以盲巷瓦斯为主要研究对象，阐述了盲巷瓦斯的分布规律，探讨了排放瓦斯的方法和注意事项。
Taking blind alley gas as the main research object, this paper expounds the distribution laws of blind alley gas, and probes into the methods for the gas emission and some matters needing attention.
这所企业每年制造并排放出超过180吨瓦斯，这些气体最后变成覆盖了邻近地区的酸雨。
This enterprise produces and expels over 180 tones of gases a year that are turned into acid rains covering the adjacent territory.
本实用新型涉及一种瓦斯排放器产品，是由电控箱、甲烷检测仪、局扇等几部分组成。
The utility model relates to a gas discharge device which is composed of an electric-control box, a methane detector, a portable blower, etc.
成庄煤矿3308综放面由于瓦斯排放量大，多次造成因瓦斯超限停产。
Because gas drainage is strong in 3308 workface of Chengzhuang coal mine, stop production often takes place for above-the-common.
实验表明，该方法能较好地实现掘进巷道的正常通风和瓦斯排放，并达到节能效果。
The results of experiment testify that the method not only realizes the normal ventilation and gas drainage in drivage roadway but also saves energy.
瓦斯排放井的套管具有直径大、重量大，在下入井筒过程中，经常出现套管被挤毁的现象。
Casings used in gas drainage Wells have large diameter and heavy weight, during the lowering process, compressive collapsing is an ordinary phenomenon.
试验表明，该产品可根据瓦斯抽放浓度对抽放管道的流向、抽放与排放状态进行自动控制与切换。
The tests show that this changer can automatically control and change the flow direction of gas in the pipeline and suction and discharge state according to gas concentration.
所得出的钻孔破坏半径的表达式可用于不同条件下计算瓦斯排放钻孔的有效排放半径和卸压钻孔的有效卸压半径。
Sequentially, the effective radius of gas extraction and the effective pressure-released radius of pressure-released borehole are calculated by the borehole destroying radius expressions.
试验表明，旋转径向射流可安全、可靠、经济、有效的排放上隅角积聚瓦斯。
It has been proved by the field experiment that the method of rotary radial jet discharging gas accumulating in upper corner of coalface is really safety, dependable, economical and validly.
通过大煤样的瓦斯排放试验研究，揭示了顺序加载与逆序加载下的煤体变形与瓦斯排放量以及排放时间的相关性。
Through the testing research about gas drainage on outsize coal sample, the relativity of coal mass deformation and drainage quantity & time is opened out.
局部通风机是煤矿井下掘进过程的重要设备，其使用的可靠性和效能直接影响着瓦斯的安全排放。
The partial ventilator in the coal mine is an important equipment in mine digging, its dependability and efficiency affect directly the safety of gas drainage.
高炉瓦斯灰是炼铁高炉在炼铁过程中随高炉煤气（亦称瓦斯）带出的原燃料的粉尘以及高温区激烈反应而产生的微粒，是钢铁企业主要固体排放物之一。
The blast furnace dust is a kind of solid waste that produced in the process of iron smelting. It is one of the main solid wastes of the steel plant.
现场考察了淮南矿区掘进巷道瓦斯排放的基本参数，确定了巷帮钻孔的有效布置范围和合理抽放时间。
On-the-spot investigation was made on the basic parameters of gas drainage in drivage roadway in Huainan Coal Mining Area, and reasonable arrangement range of rib bore-holes an...
该系统以排放出的瓦斯体积分数为参量，通过PID算法来调节局部通风机转速，实现了掘进工作面瓦斯的安全排放，保障了煤矿井下的生产安全。
The system regards the gas volume fraction as the control parameters and regulates rotational speed of local fans by PID algorithm, thus making possible the safe gas drai...
该系统以排放出的瓦斯体积分数为参量，通过PID算法来调节局部通风机转速，实现了掘进工作面瓦斯的安全排放，保障了煤矿井下的生产安全。
The system regards the gas volume fraction as the control parameters and regulates rotational speed of local fans by PID algorithm, thus making possible the safe gas drai...
应用推荐