气体的

There are many kinds of sensors , and the gas-sensor is an important kind, whose theory is to make use of the variable of resistance under the sensitive gas condition, resulting in the change of electricity variable in the circuits.

传感器的类型有很多，而其中很重要的一种就是电阻型气敏传感元件，它的原理就是利用敏感电阻在气体中电阻率改变，从而引起电阻的变化进而通过电路中电学量的改变来测量敏感气体的存在。

Based on the Percolation theory and the Voronoi model, the pore size distribution is with normal distribution. Considering the flection of the pore, the variability of the pore size and the diffusion of the reactive gas, the comprehensive desulfurization model between CaO and SO〓 is established by adopting the elemental sphere disposal method.

根据由逾渗理论结合Voronoi模型得出的CaO孔径分布符合正态分布的结论，采用微元球壳的处理方法，考虑孔隙长度的曲折性和反应过程中孔径的变化过程和反应气体的扩散过程，建立了CaO颗粒与SO〓气体之间的综合脱硫反应模型。

A theoretical study of potential energy of solid surfaces and a deeply discussing of the influence of the adsorbed gases in the solid surfaces to the process of absorption and desorption were given.

从分子之间的作用力和分子之间相互作用的能量的角度对真空科学中表面吸附的位势理论进行了理论研究，并深入地探讨了固体表面吸附的气体分子层对气体的吸附与脱附的影响。

A gas,such as steam in the cylinder of asteam engine,has neither deftnite shape nor definite volume-it changes its sshape and also its svolume with change in the shape andvolume of the container.

气体，例如蒸汽机汽缸中的水蒸气，既无一定的形状，也无一定的体积。气体的形状和体积是随着容器的形状和体积的改变而变化的。

A gas,such as steam in the cylinder of asteam engine,has neither deftnite shape nor definite volume-it changes its hape and also its svolume with change in the shape and volume of the container.

气体，例如蒸汽机汽缸中的水蒸气，既无一定的形状，也无一定的体积。气体的形状和体积是随着容器的形状和体积的改变而变化的。

A gas,such as steam in the cylinder of asteam engine,has neither deftnite shape nor definite volume-it changes its sshape and also its svolume with change in the shape and volume of the container.

气体，例如蒸汽机汽缸中的水蒸气，既无一定的形状，也无一定的体积。气体的形状和体积是随着容器的形状和体积的改变而变化的。

A gas,such as steam in the cylinder of asteam engine,has neither deftnite shape nor definite volume-it changes its sshape and also its svolume with change in the shape and volume of the container.

气体，例如蒸汽机汽缸中的水蒸气，既无一定的形状，也无一定的体积。气体的形状和体积是随着容器的形状和体积的改变而变化的。change。。。with，&随……而变化&。

A gas,such as steam in the cylinder of asteam engine,has neither deftnite shape nor definite volume-it changes its sshape and also its svolume with change in the shape andvolume of the container.

气体，例如蒸汽机汽缸中的水蒸气，既无一定的形状，也无一定的体积。气体的形状和体积是随着容器的形状和体积的改变而变化的。change。。。with，&随……而变化&。

During the second transition about 231°C, a structural change took place, which corresponding to decomposition of silver behenate. The major thermal decomposition products are silver nanoparticles and behenic acid. The gas products from thermal decomposition of silver behenate were detected by MS. Carbon dioxide was first emerged, subsequently water, hydrogen, acetylene and some small molecule alkenes appeared.

采用MS对山嵛酸银在整个热分解过程中所释放出的气体产物的跟踪检测发现，首先是二氧化碳气体的放出，接着是氢气和水，随着温度的进一步升高，又伴随着乙炔和一些小分子的烯烃产生，当温度进一步升高到500℃左右时，被山嵛酸钝化的银纳米粒子逐渐失去了有机分子，最终的热分解产物为金属银。

Firstly, the condensation heat transfer of steam-air mixture on the outside of a horizontal smooth tube and four square thread tubes is studied experimentally, and then, the condensation heat transfer on axisymmetrical surfaces as well as vertical plates of any kind of vapors containing noncondensable gases is analyzed theoretically.

本文作者先实验研究含空气的水蒸汽管外冷凝时水平光滑圆管和强化换热圆管的传热特性，实验时控制主流混合气体的压力和空气的质量成分，并探讨建立实验关联式的方法；然后对含不凝气体的蒸气在竖直平板和轴对称壁面上冷凝换热进行理论分析。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。