空气

In this paper, the evolution of air hammer and air bit has been reviewed, the structure, advantages and application con.

为此，对空气锤和空气钻头发展历史进行了简单回顾，介绍了空气锤及空气钻头的结构、使用优点和应用注意事项，重点阐述了空气锤和空气钻头在普光气田的应用效果和出现的问题。

The drill rigs are a kind of fast drilling equipment which is rotated by an air motor, pushed by one or two air cylinders and the low or middle air pressure DHD hammer could be used.

演练钻机是一种快速钻井设备是由一个旋转的空气马达，推由一个或两个空气气罐及低或中等空气压力dhd锤，可用于。

Once the coffee bean is exposed to air, its flavor begins to lose. A whole bean is the best jacket again air, but once it is ground, it becomes powdered and then increases the contact with air and the flavor loses fast.

在咖啡豆与空气接触的同时，其风味即开始流失，而一颗完整的咖啡豆与空气接触的面积有限；但咖啡豆研磨后即形成粉沫状也就有无数个面与空气接触，使其风味的流失加快。

A wide front fascia with a large, forward-facing grille opening, a splitter along the bottom and wheel opening extensions along the sides to provide aerodynamic downforce A cold air scoop in front of the hood that integrates an air inlet system for the engine The trailing edge of the front wheel opening is radiused to achieve improved drag, but protects the body finish with a tough molding, and a large air extractor is located behind the wheel A fixed-roof bodystyle optimizes body rigidity and mass Wider rear fenders with flares cover the massive rear tires and a brake cooling scoop in front of the wheels visually balances the fender extractor A tall rear spoiler houses the CHMSL on the top of the rear fascia 10-spoke wheels (18-inch, front; 19-inch, rear) Four larger stainless steel exhaust outlets New-design Chevrolet Corvette Z06 badging on the carbon fiber front fenders

宽阔的前仪表的大，面向前方格栅启用，底部和侧面的轮开放扩展拆分为空气下压力的一个寒冷的空气罩前面铲，整合为一个航空发动机进气道系统的尾部前轮的边缘radiused开放，实现改善阻力，但保护的强硬成型身体结束，和一个大型空气提取的背后是车轮固定屋顶bodystyle优化车身刚性和群众更广泛的耀斑位于后翼子板覆盖大规模的后方轮胎和刹车冷却的车轮前面铲视觉平衡挡泥板提取一个高大的后扰流器房子的后方筋膜十名高位刹车灯，以车轮（18英寸，前，19英寸，后）四较大的不锈钢排气口新设计的雪佛兰克尔维特Z06的碳纤维前挡泥板徽章

How to resolve the coupling problem between the air quality and the indoor thermal environment, especially how much fresh air can assure the indoor air quality, how to design control system to satisfy the need of fresh air, and how to track the change of the air quality in the civil air defence underground engineering at real time were studied thoroughly in this paper.

摘 要 本文就如何解决人防工程内空气品质和工程内热湿环境的耦合性问题进行一定研究，尤其对人防地下工程需要多少新风量才能满足工程内空气环境品质；如何设计控制系统以满足工程内的新风需求；如何实时跟踪工程内空气品质的变化进行了深入研究。

It is calculated according as the quantity of air molecules ionized by the alpha rays decayed by radon and its progeny as the air is inhaled to the ionization chamber by the air pump.

采用的测量原理是通过气泵把空气吸入电离室内，通过测量氡及其子体衰变放出α射线使空气分子电离的量来间接测量空气中的氡浓度。

Intelligent nuclear instrument has been a dominant developing direction of radioactivity measurement instrument. The instrument for radon measurement of air pulse ionization chamber, based on the theory that alpha rays decayed by radon and its progeny can ionize the air molecules, can measure the radon concentration accurately.

智能核仪器已成为放射性测量仪器发展的一个主导方向，利用氡及其子体衰变放出α射线能使空气分子电离的理论设计的空气脉冲电离室α测氡仪可以准确地测量空气中的氡浓度。

The effect of the inlet parameters of air, air mass flow rate and spray water rate on the performance of closed cooling tower is discussed in the paper. A mathematical model for evaluating heat and mass transfer performance of closed cooling tower is set up. The analytical solution of differential equations is derived.

目的 分析闭式冷却塔内各参数，即空气焓值、含湿量、冷却水温等的分布情况；探讨空气入口参数、空气质量流量、喷淋水量对闭式冷却塔冷却性能的影响规律。

The product enjoys unique electrostatic precipitation design, and can achieve high efficient catching of dust, pollen, mold, dust mite, anaphylactogen and smoke in the air, with evident purification effects.

能快速、有效的电解空气中的烟尘等，瞬间去除屋内异味、烟臭味、室内污染空气迅速转化成新鲜清净的空气，尤其适合会议室、卧室内去除烟尘。

To study the effects of air disinfection by four methods in cosmetic workshop,air was disinfected by ultraviolet rays irradiation, 40% formaldehyde fume , pentadialdchyde solution atomize and ozone gas generator, then efficiency of disinfection was evaluated by the petridish method after disinfected.

现阶段，紫外线法和甲醛法是化妆品车间进行常规空气消毒、防止产品感染的主要措施。1999年~2001年对两间化妆品厂的化妆品车间空气微生物污染状况的调查合格率分别为17.3%、13.7%和25.8%，空气消毒不合格是一个较突出的问题，影响了消毒工作质量的提高。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了