气体测量

ABSTRACT The precision main spindle is one of important parts in machine tools and measuring instruments.

精密主轴是精密机床、测量设备的重要部件之一，利用气体静压轴承支承精密主轴已得到广泛的应用。

This method of measurement requires a hydrocarbon trace gas, in this case ethane, which is delivered to the tunnel mixed with an inert neutrally buoyant carrier gas, in this case nitrogen.

这种测量方法需要碳氢化合物跟踪乙烷在这种情况下，它是提供给混合惰性，在这种情况下，氮的中性浮力载气，隧道气体。

In this paper, in situ measurement of nitrous acid and retrieval of aerosol parameters in a fixed wavelength range (307 nm—380 nm) were performed with DOAS system developed by our laboratory.

利用差分光学吸收光谱仪进行亚硝酸气体的测量并同时在固定的波长范围内(307—380nm)反演气溶胶参数包括气溶胶的平均直径、总个数和总比表面积等。

The saturated liquid densities of HFC227ea and the vapor-liquid coexistence curve were measured, the critical temperature and critical density were determined by the critical opalescence phenomenon, and then the critical pressure was determined by vapor pressure equation.

测量了HFC-227ea饱和液体密度和临界区的气液共存线，确定了HFC-227ea的临界温度、临界压力、临界密度；推算了HFC-227ea的饱和气体密度，并验证了其可信度；关联了饱和气液密度，提出了高精度的HFC-227ea饱和气液密度关联式；关联了临界区气液共存线，可精确再现HFC-227ea临界区性质，并根据临界幂定律导出了HFC-227ea的临界指数和临界幅值。

H-BN thin films were prepared on the (100)-oriented surface of n-Si by r. f. sputtering physical vapor deposition. The field emission characteristics of the BN films were measured in a ultra high vacuum system. It has been found that the field emission characteristics of BN films is affected evidently by substrates temperature.

利用射频磁控溅射方法，真空室中充入高纯N2(99.99%)和高纯Ar(99.99%)的混合气体，在n型(100)Si基底上沈积了六角氮化硼薄膜，在超高真空0^(-7Pa系统中测量了BN薄膜的场发射特性，发现沈积时基底温度对BN薄膜的场发射特性有很大影响。

The most commonly used method for measurement of gas is the orifice meter.

孔板流量计是测量气体流量最常用的方法。

We are gonna do many for cuts because we have to,but the only way you are gonna get a treaty that is passible in United States Senate,is going to have global participation,all countries will have to do something,we can define diffirent rates ,diffirent levels, diffirent layers ,but it's gotta be measurable,reportable,and verifiable,and in the end there is got to be real actions that other countries are taking,so that no one is feeling they are doing things,but some other countries out there undoing everything they are doing.

偶们会采取很多措施来减少气体排放量，因为偶们必须这样做。但是唯一能使该协议通过美国参议院的方法就是全球参与，所有的国家都采取行动。偶们可以定义不同的比率，不同的水平，不同的层次，但是必须是可测量，可报告，可证实的。最后，其他国家必须采取实际行动，这样才不会使有点国家认为他们采取了行动而有些国家却什么都没有做。

The research involved the measurement of particulate matter, as observed by a photoelectric cell, shown by the gases venting out of a wood stove chimney.

这项研究主要是通过木炉烟囱中排放的气体来测量微颗粒物，例如观察光电细胞。

The resistance and long distance pressure meter is suit to measure the liquid ,steam. or gas which can't corrupt the cooper and steel.

电阻远传压力表适用于测量对钢及铜合金不起腐蚀作用的液体，蒸汽和气体等介质的压力。

Application of gas sensor based on rectangular prism in the monitoring of atmospheric visibility.

基于直角棱镜的气体传感器在能见度测量中的应用。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。