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A differential equation that is generally effective for squeeze-film air damping of perforated plate and non-perforated plate as well as in MEMS devices is developed.

推导建立了一个用于微电子机械器件压膜空气阻尼的一般化微分方程。

The transition pressure calculated by the model is much closer than that calculated by the existing model. A modified model of squeeze film air damping is developed for the design of high-aspect-ratio damping holes formed by deep RIE process.

本文还提出了开有高深宽比的阻尼孔的多孔板的压膜阻尼的修正模型，为采用深反应离子刻蚀技术制作的阻尼孔的设计提供了手段。

Both viscous damping and air drag force must be introduced into the dynamic models. The experiment is carried out in the single-axis air-bearing test bed according to the experiment scheme in chapter 3. The results demonstrate the validity of the developed model, while the conventional zero-order approximate approach could lead to bad results for some high speed cases.

结果表明了传统零次近似方法在某些条件下已不能正确描述柔性体的刚柔耦合动力学性质，而一次近似的刚柔耦合动力学模型得到的结果与实验相符，从而证实了一次近似耦合模型的正确性和可靠性。

The air film thickness model was developed with considering the air compressibility and foil predeformation.

建立了考虑气体可压缩性、箔片预变形等因素的气膜厚度数学模型。

Followed by the development of international trade, air freight has being quickly developed.

随着国际贸易的发展，空运也在迅速发展。

An introduction is made of air springs Model S-200-2 with dual barrels developed by Nanchang University,and of structure and calculation of vibration i solation system for 75kg air hammer with a inertial block support by the springs .

本文介绍了南昌大学所开发的S 2 0 0 2型双曲囊式空气弹簧，以及以该空气弹簧为隔振元件的 75kg 空气锤惯性快式隔振系统的结构特点和设计计算。

In order to implement simultaneous casing while drilling of larger diameter pile holes and water wells in complex strata, a new type of bit for simultaneous casing while reverse circulation drilling with DTH air hammer was developed.

为实现在复杂地层用同步跟管钻进工艺钻凿直径较大的桩孔和水井，设计了一种气动潜孔锤反循环跟管钻进钻头。

American development gives fan of condensation of efficient air conditioningIn ministry of American the sources of energy aid financially below, american researcher already developed an efficient condensation fan.

美国研制出高效空调冷凝风机在美国能源部的资助下，美国研究人员已研制出高效冷凝风机。

The leak detectors developed by the air pressure difference is based on the principles of law and development.

本所研制的检漏仪是基于空气差压法的原理而开发的。

The High Temperature Air Combustion technique was developed in Japan in the early 1990′s.

高温空气燃烧技术是九十年代初在日本开发的一项新的燃烧技术。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。