查询词典 gas-mask

Here's the basic difference: when the planets in our solar system first formed, they were swimming through a disk-shaped cloud of gas. Their passage roiled and compressed the gas, and the gravity of the compressed gas in turn pulled on the proto-planets.

根本的差别在于：当行星在太阳系中首次形成时，它们正漂浮着通过一片圆盘状的气体云，于是它们前进的道路受到波动同时也压缩了气体，被压缩气体的引力反过来拉住了这些初生的行星。

On water drainage technology, the paper has analysed the mechanism and gas process; introduced the gas theory of gas apparatus; raised the critical condition of water drainage and liquid level calculation of wellbore;the paper alse raised the sand control technology and parameter calculation.

在排水采气工艺方面，对排水采气机理以及采气过程进行分析；简单介绍了几种常见采气设备的采气原理；提出了排水采气工艺连续性的临界条件的合理的计算方法；为了取得最佳的排水采气量，提出了井筒液面的计算方法；提出了气井的防砂工艺、工艺参数设计方法以及相应的计算框图。

Reduction in the amount of flue gas and fuel due to higher boiler thermal efficiency under oxygen-rich atmosphere results in dust decrease in the exhaust gas, which makes it possible to improve flue gas velocity for utility boilers.

富氧气氛下由于烟气量的减少以及锅炉热效率提高所带来的燃料量的减少使得烟气中的粉尘量得到一定的降低，为电站锅炉水平烟道烟气流速的提高带来了可能。

The experiments for determining the reaction kinetics of Daqing atmospheric residue were performed in a continuous flow, expanded bed rector. Four-lumped reaction kinetic model was developed to account for various feed and product fractions of Daqing atmospheric residue (gases, gas oil, residue and coke). The amounts of olefins and alkyls in the gas products were further analyzed to determine reaction kinetics of gas product distributions. Hence, a combined five-lumped reaction kinetic model was obtained for catalytic pyrolysis of Daqing atmospheric residue. The kinetic constants both in four-lump model and five-lump model were evaluated. A simulator for catalytic pyrolysis process was developed by incorporating the five-lumped kinetic model into the hydrodynamic flow model.

其次利用改进的固定流化床装置考察大庆常压渣油催化裂解反应规律，筛选反应工艺参数；分析了催化裂解工艺存在的主要化学反应类型，提出了渣油一次反应和二次反应网络图；将反应原料油作为单独集总组分，而将产品中的轻质油、气体、焦炭分别作为集总，从而建立了四集总动力学模型；在此基础上，把气体产物中的目的产物低碳烯烃独立划分，得到五集总动力学模型；采用最小二乘法分析实验数据，分别得到四集总动力学模型和五集总动力学模型中各集总间相互反应转化的反应速率常数。

Based on the briquets of the outburst coal seam of typical coal and gas outburst mine of Datong in Songzao Coal and Electricity Company, by means of self-developed triaxial gas-seepage experimental device, the experimental research of permeability of gas-bearing briquets in the complete stress-strain process is performed.

利用典型煤与瓦斯突出矿井松藻煤电集团打通一矿突出煤层原煤制备型煤试件，应用自行研制的含瓦斯煤样三轴瓦斯渗流试验装置，进行含瓦斯型煤试件的全应力－应变过程瓦斯渗透特性变化规律的试验研究。

CO2 corrosion is one of the most common corrosions in oil and gas industry, so the anti-corrosion technology, closely related to the quality and working life of CO2-contained gas wells, is the basis for safe and highly efficient production of gas wells.

CO2腐蚀是世界石油天然气工业中常见的一种腐蚀类型，含CO2气井的相关工艺技术直接关系着气井的质量与寿命，是气井安全、高效生产的基础。

The occurrences of diapirs, gas-filled zones and gas plumes in seawater in Qiongdongnan Basin of South China Sea indicate that there may exist seepage system gas-hydrate reservoirs.

南海琼东南盆地发现的高压泥底辟构造、海底&气烟囱&和天然气冷泉表明该地区可能存在着渗漏系统天然气水合物藏。

The occurrences of diapirs, gas-filled zones and gas plumes in seawater in Qiongdongnan Basin of South China Sea indicate that there may exist seepage system gas-hydrate reservoirs.

中国地质大学工程学院，武汉 430074摘要南海琼东南盆地发现的高压泥底辟构造、海底&气烟囱&和天然气冷泉表明该地区可能存在着渗漏系统天然气水合物藏。

It pumps the same volume of work and the general principles, Shaft is a concerted installed in the pump body in a position eccentric rotor component, Journal of the three rotor blade will pump cavity divided into three studios, since gas was pumped into the suction mouth. break through strainer into the pump room and check valve, rotor, The studio itself complete with suction inlet isolation rooms will pump gas compression and access to the box and exhaust gas emissions.

它的工作原理与一般容积泵相同，是由一个与传动轴同心安装而在泵体内处于偏心位置的转子组成，转子上有三个径向滑动的叶片，将泵腔分隔成三个工作室，被抽气体自吸气口进入，通过打开的逆止阀与过滤网进入泵室，当转子旋转时，完成吸气的工作室自行与进气口隔离并将气体压缩和通过泵室与排气箱之间的通路将气体排出。

Figure 1 is the pump in the suction and exhaust of the process, pump suction chamber with the rotor rotation, the volume gradually increases, inhalation of gas; while the exhaust chamber volume is gradually reduced, the gas is compressed, thereby exhaust gas.

图 1 是泵在吸气和排气的过程，泵吸气腔随着转子的旋转，容积逐渐增大，吸入气体；而排气腔容积则逐渐减小，对气体进行压缩，从而排出气体。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。