天然气

An explosion spread lethal chemical agents, including mustard gas, VX gas and sarin ...

爆炸蔓延的致命性化学制剂，包括芥子气， VX的天然气和沙林毒气

ONGC employees shout anti-government slogans as they surround Indian petroleum minister Ram Naik, center, at the ONGC helipad in Bombay, India, Monday, Aug.

印度8月11日载有25名员工和4名机组成员的石油和天然气公司的一架俄制 Ml-172 直升机在海上发生坠机事件。

The aforementioned gas mixture comprises natural gas and/or naphtha or refinery gas or two or more of said gases.

上述的气体混合物包括天然气和/或石脑油或炼油气体或两种或多种所述气体。

The percolation equation of the natural gas and the rock body deformation equation have been discreted respectively to obtain their corresponding functional equation while the calculation method was derived and the coupled solution method was presented bas...

对天然气渗流方程和岩土体变形场方程分别进行离散，得到其相应的泛函方程。根据有限元法原理推出其计算方法，并给出耦合求解方法，这对于真实模拟气藏的开发，指导气田生产具有重要的意义。

Based on natural gas state equation and dynamic theory of natural gas migration, natural gas velocity of flow rate equation before and after temperature and pressure decreasing is fetched, and with which interface natural gas lengths in different reservoirs are calculated and the changing law of equivalent-length natural gas in migration is analyzed, whence it is discovered that migrating velocity of natural gas along tilting up reservoir is increasing inch by inch, along with temperature and pressure continuously decreasing.

由此发现，在运载层物性不变的情况下，天然气沿上倾地层向上倾方向运移的过程，是随地层温度和压力不断降低、其运移速度逐渐增大的过程，如果有后续气体的加入，会使气体长度增大，致使运移速度增加得更快。

Establish the steady-state and transient model using the three hydrodynamics equations (Continuity equation, Momentum equation and Energy equation). By comparing different state equation, it selects the BWRS state equation which is considered the most accurate state equation in current natural gas measurement. It calculates compression factor, density and other Thermal parameters based on BWRS state equation. In Numerical solution of the steady-state and transient model, compression factor, friction coefficient and all the other Thermal parameters are recalculated in each small time step to reduce the numerical calculation error.

在稳态模型的建立上，利用流体力学三大方程(连续性方程、运动方程和能量方程)，通过比较不同的状态方程选用了目前被认为最精确的用于天然气计量的BWRS状态方程，并以此方程为基础进行压缩因子、密度等热物性参数的计算；在稳态模型的求解上，选用容易计算，精度较高的标准型龙格—库塔(Runge-Kutta)法进行数值求解，并且在迭代过程的每一小步都重新计算燃气的压缩因子，摩阻系数等所有的计算参数，以减少数值计算的误差。

Laminar burning, velocities, mass burning fluxes and Markstein lengths were obtained at various ratios of hydrogen to natural gas and equivalence ratios, and flame stability was analyzed and the stability tendency was estimated when flames grow to larger sizes.

在定容燃烧弹内研究了初始条件为常温常压的天然气－氢气－空气混合气火焰传播规律，得到了不同掺氢比例和燃空当量比下混合气的层流燃烧速率、质量燃烧流量和马克斯坦长度，结合火焰传播照片，分析了火焰的稳定性并预测了大尺寸火焰稳定性的演变趋势。

Price is the key to the development of natural gas market.

价格是天然气市场发展的关键。

We provide about 2% of the world's oil and 3% of its natural gas.

我们提供了约世界石油的2 ％和天然气3 ％。

The purpose of this paper is to use the marketing theory of common industry to natural gas sales enterprise.

本文的目的是将一般产业的营销理论运用到天然气运营企业中。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。