查询词典 gases

Air underbalance drilling, is the drilling technique which could used gases, typically compressed air, natural gas, nitrogen and diesel tail gas as a circulation liquid.

气体欠平衡钻井，可以采用空气、天然气、氮气、柴油机尾气作为循环介质，其循环系统的压力分布、钻井机械的选择、控制井斜与传统钻井方式相比有着很大的区别。

In the absence of such a high degree of cleanliness, adsorbed gases, water vapor, oxides, and contaminants reduce friction and the tendency to seize but usually result in severe wear; this is called "unlubricated" or dry sliding.

由于无法实现如此高的清洁度，摩擦面中的气体，水蒸汽，氧化物及其他污染物会在此过程中减少摩擦力及咬合的趋势，但也往往导致更严重的磨损；这种情况被称为&无润滑&或干摩擦。

Wheat straw powder amendment induced one times and more emissions of N 2O and CH 4 than no its application, and hence, even only from the standpoint of diminishing soil source greenhouse gases emission, applying unmatured composted organic materials with urea is an inappropriate fertilization system.

不论是N2O还是CH4的排放总量，施麦秸粉的都比未施的高出1倍和更多。因此，单从土壤源温室气体排放的角度看，将未腐熟的有机物料与尿素共施，并不是一种适宜的施肥制度。

The team hopes to develop an unstaffed device capable of monitoring a volcano through the smoke, gases and clouds that usually surround its crater.

研发团队盼望能建立一套无人装置，并藉由烟，毒气以及经常围绕在火山口的云雾来监控火山的活动。

Dr Weiss and his colleagues excel at the precise measurement of gases present in vanishingly small amounts—things measured in parts per trillion, rather than the parts per million used for carbon dioxide.

韦斯博士和他的同事在微量气体精确测量方面十分杰出。他们的测量单位是以亿万分之几计算而不是用于测量二氧化碳的百万分之几。

In CHAPTER six,the exact expressions of parabolic cylinderfunction of the second virial coefficient B2for gases withLennard-Joenes potential are obtained.

第六章，获得了Lennard-Jones气体的第二维里系数B2的用抛物柱函数的严格表示。

By using the regular-solution theory and the virial expansion for the Redlich-Kwong equation of state, an equation was proposed to relate the solubility values of the gases in the non-volatile solvent to temperature and pressure.

采用RK方程的维里展开式和正规溶液理论推算得到的气体溶解度与温度和压力的函数关系式，并对相同温度和压力下CO等气体在纯苯酚中的溶解度进行了三参数关联，得出了溶解度的计算模型。

Volta was interested in the physics and chemistry of gases as well as in electricity.

伏打对在电力中的空气物理学和化学感兴趣。

Building owners say such make -overs are very important to reduce levels of greenhouse gases in New York.

大厦拥有者说这样的改造对减少纽约的温室效应气体很重要。

The series include atmospheric pilots designed to burn low or high pressure gases and blast pilots for all kind of blast and gun type burners.

包括为燃烧高低压燃气设计的常压引火炉头和为高速枪式炉头设计的高速引火炉头。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。