气

Characteristics of steel rolling waste water from an iron and steel plant were high water temperature,poor gas dissolving effect,containing oil and suspension,close density of oil and water and serious emulsifying degree.

针对钢铁厂轧钢废水水温较高、溶气效果差、含油和悬浮物、油水密度接近、乳化严重等特点，在充分吸收DAF和CAF气浮技术的基础上，首次将CAF气浮技术应用于鞍钢中板废水的处理。

The first control strategy has the disadvantages such as a large amount of computations, inherent pull-out torque, difficulties in realizing the adaptive control and so forth. For the rotor flux-oriented control, changing of load or the rotor speed will result in increased or decreased torque winding currents, which will change the magnetic field distribution in the air gap. Assumption that magnetic field is approximately equal to that generated by torque windings will affect the levitation performances.

分析表明：气隙磁场定向控制中存在最大转矩限制、非线性机械特性，难以实现自适应控制等问题；对转子磁场定向控制而言，当负载或转速变化时，由于转矩控制绕组转矩电流变化将导致气隙磁场发生改变，如果仍以转子磁场近似替代气隙磁场作为悬浮依据，必然影响到悬浮控制性能。

I also EXAIR as the United States in China and Hong Kong agents, marketing and sales of the company's air knife, vortex tube chassis electric cooler, gas knife-type pneumatic conveying equipment, electrostatic air cleaner knives and other products.

我公司还作为美国EXAIR公司在中国及香港地区的代理商，推广及销售该公司的气刀、涡管式电气机箱冷却器、气刀型气力输送装置、气刀式静电清除器等产品。

The results reveal that under violet ray radiation,the sensitivity of ZnO nanowire gas sensor has been increased by 353% in NH3 atmosphere with a density of 100 mL/m3,the response-rev...

采用紫光(波长为370~395 nm)激发，用静态配气法对浓度为100 mL/m3的氨气进行了气敏性能的测试。ZnO纳米线气敏元件对氨气检测的灵敏度提高了353%，响应时间和恢复时间分别缩短了4 s和1 s。

On the basis of API standards and relevant Chinese standards, the dynamic characteristics of the homemade gas lift valves used in Wendong Oilfield are tested and analyzed. The dynamic characteristic parameters tested include debuging opening pressure, bellows bearing capacity, travel of valve rod, flow rate and valve leakage.

以API11V2—1995标准和国内3项与气举采油相关的石油行业标准为基础，依靠已建成的气举阀动态特性测试试验室，对文东油田使用的国产气举阀进行了调试台打开压力、波纹管承载率、阀杆行程、流量参数和气举阀漏失量等5项动态特性参数研究和现场测试。

Finally, experiments and analyses in valve gear vibration and noise are conducted by means of the advanced measuring and processing instruments. Especially, the noise caused by valve setting is separated and analysed from the total noise, such work has never been done before. The conclusions are significant for reducing vibration and noise of valve gear.

本文使用目前国际上先进的测试、分析仪器对配气机构的振动、噪声进行了实验和分析，特别是在噪声分析上设法将气门的落座噪声分离出来，专门地进行了分析，这在配气机构的噪声分析上还是第一次，得到了一些有意义的结论，为配气机构的减振、降噪提供了依据。

After the leak detection valve and the chamber evacuation valve are closed we vent the chamber and we draw off the helium.

在泄漏检测阀门和气室抽真空阀门关闭后，我们给气室放气并排除氦气。

Initially, assuming that the contact between cam and tappet is"dry contart", a dynamics model of Hertzin contact stiffness and impact damping is established. Next, with dynamic load on cam—tappet pair from the model, an analysis is made both to unsteady EHD oil film in cam—tappet pair under condition of full and partial lubrtication and to wear characteristics of cam profile. then, according to the fact that the lubrication in cam—tappet contact surface is EHD lubrication, taking the interaction between stiffness and damping of unsteady EHD oil film and rigidity of solid object contact into account, a dynamics equation of valve train relating to the dynamic effect of EHD oil film is built up and solved. Consequently, a further study is made on the dynamic characteristics of valve train under interaction of EHD oil film dynamic behavior and the problem of EHD lubrication in cam—tappet pair. Finally, the dynamic effect of full and partial EHD oil film is studied accordingly.

首先，通过对凸轮—挺杆接触为&干接触&的假设，建立了考虑赫兹&接触刚度&和冲击&阻尼&的配气机构动力学模型，用由此求得的凸轮—挺杆表面动载荷对凸轮—挺杆进行了全膜状态和部分膜状态非稳态弹流润滑分析，并研究了凸轮轮廓的磨损规律；然后，是在凸轮挺杆表面存在弹流动压油膜这一事实的基础上，相当于在动力学方程中考虑非稳态弹流油膜的&刚度&、&阻尼&和固体接触&刚度&的耦合作用，建立并求解了考虑弹流润滑行为动力学效应的配气机构的动力学方程，从而深入地研究了弹流润滑行为与动力学行为耦合作用下的配气机构动力学特征以及凸轮挺杆弹流润滑问题；作为前面工作的对应部分，考虑弹流油膜动力学效应的研究工作也同样分为全膜状态和部分膜状态进行。

The applications of LO-CAT process in the H2S removal of gases, such as fuel gas, acid gas of amine unit, stripped gas of wastewater treatment plant and tail gas of Claus unit, were introduced.

介绍了LO-CAT工艺用于炼油厂燃料气、胺精制酸性气、含硫污水汽提气和克劳斯装置尾气等气体的脱硫处理。

By adopting mechanical driving mode, the machine can be used for perform injection with stable pressure on bone pork, beef and poultry. When the injection needle contacts the bone, the downward movement is stopped by the pneumatic spring to protect the needle. The air chamber pressure of pneumatic spring is adjustable in order to ensure no damage on the bone.

用途采用机械驱动方式可对猪肉、牛肉及禽肉等带骨肉以稳定的压力注射，注射针在遇到骨头等硬物后可自动在气弹簧的作用下停止向下运行，保护注射针，气弹簧的气室压力可调节，保证对原料中骨结构不破坏。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。