气体环

这些气体环最后终于凝结形成行星。

And these rings of gas would then eventually coalesce and form the planets .

因为气体环的转动速度化为四边形聚星的轨道运动速度，因此四边形聚星的总动能与它的成员星数目n无关。

Because rotating velocity of a gas ring will change into orbital velocity of the Trapezium , the total kinetic energy of a Trapezium is not relevant to its total number of membership n.

在星云早期坍缩阶段中形成气体环的条件

The condition of forming a ring in the early phase of collapse of a cloud

计算表明，当气体环到中心的距离大于环半径的2.5倍时，四个成员星的聚星就是不稳定系统。

The calculation shows that the Trapezium possessed four memberships will be an unstable system , if the distance from the centre to the ring is bigger than 2.5 times of the ring 's radius .

新型SF6气体绝缘环网柜

New SF_6 Gas Insulation Ring-Network Cabinet

采用kε湍流模型对气体通过环缝喷入管内轴向气流形成的错流射流场进行了数值模拟，模拟结果与实验数据及有关文献进行了比较。

The flow field formed when jets were injected through an annulus into a crossflow field in the reactor was mathematically simulated with the k ε turbulent model .

文章介绍了一种新型SF6气体绝缘环网柜及三工位负荷开关的设计原理、结构、功能和应用范围。

This paper presents the design principle , structure , function and application range tor a new SF6 gas insulation ring-network cabinet and three-position load switchgears .

银心区气体分子环的开普勒模型

A Keplerian model of the gas molecular ring in the center of our galaxy

气体浮环轴承的动态分析

Dynamic Analysis of Floating - Ring Gas Bearings

重点研究了气体钻井环空气固两相流动力学模型的求解，采用有限体积方法对模型进行了数值化处理。

The model of the air drilling air-solid two-phase flow aerodynamic was solved using the finite volume numerical method .

分析并描述了气体在环空滑脱上升与立压、套压变化的关系。

The relationship between slippage and ascendance of gas in annulus as well as varies of stand pressure and case pressure in the well controlling process are described .

本文对气体浮环动静压混合轴承的静动态特性进行了研究，并给出计算其高速稳定性的简单方法。

The steady-state performance and dynamic characteristics of aerostatic / aerodynamic hybrid floating-ring bearing is studied , and a simple calculating method for estimating its high-speed stability is gived .

但层间封隔问题更引人注意，特别是当有气体侵入水泥环中的可能时更是难以达到预期目标。

The later usually raises the most concern and is perhaps the hardest goal to achieve when there is potential for formation gas to migrate into the cement sheath .

气体驻波的火焰环演示

Demonstration of gas standing wave on a flame ring

螺旋槽气体端面密封密封环变形有限元分析

Finite Element Analyse of the Distortion of Sealing Ring of Spiral Groove Gas Face Seals