查询词典 gas-mask

The conclusions can be drawn through numerical simulation: The hydrate-forming region becomes small with increasing circulation rate and inhibiter concentration, and it is possible to make the hydrate-forming region away from sea floor by increasing circulation rate and inhibiter concentration, thus preventing blowout preventer lines from hydrate plugging; the decrease in gas volume fraction in the annulus due to hydrate formation reduces pit gain, which can delay the detection of well kick; the possibility of hydrate presence at a relatively low gas production rate is much greater than that at a relatively higher production rate; the bottom hole pressure is affected little by hydrate phase transition, and it is allowable not to consider hydrate phase transition when the bottom hole pressure is calculated; shut-in casing pressure cann't truly reflect gas kick due to hydrate formation and the situation is getting worse with time

模拟计算结果表明：溢流期间，天然气水合物的生成区域会随着循环流量的增大或抑制剂浓度的提高而减小，可通过增大流量和抑制剂浓度使水合物的生成区域脱离海底，减小防喷器管线被堵塞的危险；水合物的生成使环空中气体体积分数降低，泥浆池增量减小，给溢流检测带来延迟；当检测到有气侵发生时，水合物藏分解速率比较小时，井筒中生成水合物的可能性要比分解速率大的情况下更为严重；水合物相变对井底压力的影响较小，在工程中计算井底压力时可以忽略；由于天然气水合物的生成使得关井套压值不能真实反应气侵情况，而且随着时间的增加情况会更加严重。

First, from the macro view of gaswater distribution and movement law, the formation mechanisms of edge water, inlayer water and interlayer water, as well as the three basic models of water breakthrough in gas wells were analyzed. Then from the microscopic angle, this paper studied the reservoir pore structure and rock wettability of loose sandstone gas reservoir, and analyzed their control effect on gas reservoir's original gaswater distribution.

首先从宏观气水分布及气水运动规律的角度出发，分析了边水、层内水、层间水的形成机理和气井见水的3种基本模式；然后从微观角度，对疏松砂岩气藏的储层孔隙结构及岩石润湿性进行了研究，分析其对气藏原始气水分布的控制作用。

This topic research aim to pretreatment the flue gas, namely, in virtue of the fly ash inspissation equipment to separate one part of gas (its concentration of the dust contented national emmision standard) from the flue gas and release directly, Lower the handing capacity of the electrostatic precipitators, raise the dust efficiency, making it can attain the national standard.

环境科学、安全科学废物处理与综合利用气固悬浮流过滤浓缩技术的研究硕士聚四氟乙烯覆膜滤料；过滤阻力；数学模型； PTFE membranefilter media；filtration resistance；mathematics model；本课题研究旨在对烟气进行预处理，即借助飞灰浓缩装置将一部分气体(其含尘浓度满足国家排放标准)从烟气中分离出来并直接排放，从而降低电除尘器的处理量，提高除尘效率，使其排放能够达到国家标准。

The forward finite difference and Newton iterance are used in the light of box model and other heavy gas dispersion models, such as IIT Heavy Gas Models and virtual point source model, to solve the differential equations of controlling heavy gas cl.

文中从控制重气云团扩散行为的微分方程入手，根据箱模型及其他一些重气扩散模型，如IITHeavyGasModels模型和虚点源模型，采用向前插分和牛顿迭代的方法，针对ThorneyIslandTrialNo 。0 0 8试验进行了数值模拟，得到了重气云团外形尺寸和空气卷吸量随时间的变化关系以及下风向固定点处地面最大浓度值。

Jabiru Metals's Jaguar copper-zinc mine has been able to revert to 100% gas power generation through alternative gas supplies from 1st July to 30th September 2008. During June only 80% of normal gas supply was received at Jaguar, although full generating capacity was achieved by using diesel.

Jabiru Metals公司旗下Jaguar铜锌矿恢复了100％的天然气发电，因其在2008年7月1日至9月30日期间获得了额外的天然气供应。6月份，Jaguar铜锌矿的天然气供应仅为正常情况下的80％，尽管通过使用柴油其发电能力得到全面利用。

Blister gas (yperite/mustard gas, lewisite, etc.): Mustard or geranium-like odor. Colorless in gas form, reddish-brown in liquid form.

糜烂气体：气味：芥末味或天竺葵味，颜色：气体状态无色，液体状态呈红棕色。

In chemical plant,liquefacient ammonia leaking from refrigeration equipment usually disperse in the air and become dense gas at the beginning.With the air coming into the gas,it will be increasingly close to the air density and become non-dense gas.

化工厂制冷装置发生液氨泄漏，泄漏后形成毒气云团在空气中扩散，初期多形成重气云团，在扩散过程中随着空气的不断卷吸，重气云的密度会越来越接近空气，从而转变为非重气云团。

It must have been a gas that could burn but that would not e XP lode, a gas that did not smell strong, and a gas that did not kill people.

这准是一种能够燃烧但不会爆炸的气体，一种气味不大又不伤人的气体。

This paper describes in brief the lithologic profiles and the geophysical logging curves of the low resistivity oil and gas layers in Tabei area, analyzes the origin of the low resistivity oil and gas reservoirs in that area, and deals emphatically with the principle of applying the neural network to recognizing oil and gas layers, oil-water layers, water layers and dry layers.

简要介绍了塔北低阻油气层岩性剖面、低阻油气层地球物理测井曲线特征，分析了塔北地区低阻油气储层成因，重点论述BP人工神经网络识别油气层、油水同层、水层和干层的方法原理。

Gas is the coal"s accompany sources, it belongs cannot regenerate lustration energy sources, so increasing gas"s take out effect, and increasing using rate of gas, that is important task to improve the produce safe status and empolder undefiled energy sources.

瓦斯是煤炭的伴生资源，同时又属于不可再生的洁净能源，因此，提高瓦斯抽集效果，增加瓦斯能源利用比率，是改善煤矿安全生产状况和开发绿色能源的重要课题。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新