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In this study,TGA and self-made vacuum pyrolysis apparatus were used to detect the characteristics of biomass pyrolysis liquation and the rules of preparation of activated carbon under vacuum.The seven kinds of common agricultural and forestry waste biomass were from Yiyang. The main contents studied are as follows:(1) TGA was used to detect the influence of biomass species and heating rate on the pyrolysis reaction.

本研究采用真空热重分析仪和自制的真空热解实验装置，对益阳地区7种农林废弃生物质进行了真空热重、真空热解液化和真空化学活化等实验研究，以探讨生物质真空热解特性行为和生物质真空化学活化法制备活性炭的规律等，主要内容包括以下几个方面：(1)对7种生物质进行了真空热重分析，考察了不同生物质原料、升温速率对生物质真空热解反应的影响。

This paper analyses the current condition of vacuum magnetic starter and introduces varied functions and achieving principle about intelligent vacuum magnetic starter for mine based single ship microcomputer 80C196KC.

对真空磁力启动器的现状进行全面分析，介绍了基于 80C196KC单片机的智能型真空磁力启动器的各种功能及实现原理，而后给出了相应的硬件和软件设计以及抗干扰措

In order to overcome the key problems in the experimental study on microwave plasma thruster, of which the whole system operates under vacuum condition, and to remove the unnecessary energy loss, the microwave source of plasma thruster operated under atmosphere and vacuum condition was developed by applying the design technology of the nonlinear power supply, the integration of attenuator and detector, liquid cooling, after overcoming the gas breakdown problems of electro and microwave apparatus.

为解决微波等离子推力器全系统在真空中进行实验，减少不必要的能量损失，利用开关电源、衰减器和检波器一体化设计技术和液体冷却技术，通过解决微波电子器件在真空中的放电问题，研制出可在大气与真空环境中工作的体积小和质量轻的微波等离子推力器微波源，其输出和反射微波功率可根据磁控管的阳极电流和检波器的输出电压进行测量。

Through study on three methods to preserve Myrica rubra 's juice such as low-temperature cold storage、physical and chemical processing and vacuum concentration, the results indicate that vacuum concentration preservation with thin velum has the best effect and lower cost.

通过对杨梅果汁低温冷藏、物理化学保鲜及真空浓缩保鲜等几种方法的研究，结果表明真空薄膜浓缩保鲜方法效果最好，成本较低。

According to the observation experiment at the Jiufeng station where there is smaller environment noise, the conclusions are drawn as follows.In the normal atmosphere, the observed value is about 500×10-5ms-2, which is greater than theoretical value about 30×10-5ms-2, and if in the low vacuum, the observational error about 2.3×10-5ms-2 is generated. The vacuum maintaining system in falling room can not work normally, which will yield 0.1~4.1×10-5ms-2 error to the gravimetric observation. In the case of that the measurement is in the stable geological conditions and the smaller environment noise, the action of vibration isolating spring is not obvious, but it yields greater effects on measurement accuracy.

通过在环境干扰较小的九峰站观测实验，得到如下结论：在正常大气压状态下所观测到的空气阻力影响约500×10-5ms-2，比理论估算值大近30×10-5ms-2，若在低真空状态测量空气阻力也将产生2.3×10-5ms-2观测误差；落体室真空度维持系统工作不正常，空气阻力也将对重力观测造成0.1~4.1×10-5ms-2的观测误差；在地质条件比较稳定，环境震动干扰较小的基墩上测量，隔震弹簧的作用对观测结果影响不明显，但对测量精度影响较大。

The paper are studied dynamics characteristic of IR smoke under entironment to vacuum and micro-gravitation,based maths-model of thermodynamic onflow pervasion by smoke formed, the experiment proves that the movement speed of smoke gradually minishes along with hoist of vacuum.The process after smoke formed analysed ,which proves that its movement rule relates hilum of particle.

本文对真空和微重力环境下的红外烟幕进行了动力学特性研究，建立了烟幕形成过程中的热力湍流扩散数学模型，通过实验表明随著真空度的升高，烟幕的运动速度逐渐减小；并对烟幕形成后的过程进行了分析，结果表明其运动规律跟粒子的粒径有关。

Keywords magnetic material;soft magnetic material;hard magnetic material;vacuum heat treatment;vacuum furnace;permalloy;silicon steel;deoiling

磁性材料；软磁材料；硬磁材料；真空热处理；真空炉；坡莫合金；硅钢；脱油

Knowing that you can get also here in China all top Vacuum equipments now from Pfeiffer Vacuum I'm convinced, that the future and the success will continue also here in China and you will be the driver for high tech companies and products.

获知你们现在也已经可以在中国，直接从普发真空采购到最好的真空设备，我深信，美好的未来和巨大的成功也将在中国延续。你们也将成为高新科技公司和产品的掌舵者。

Lastly, we design a mechanical testing apparatus and tested some key components of vacuum vessel such as bellows, ports and support using photoelasticity and resistance strain gauge. From the test we have got lots of experimental data, which are very important for the design of vacuum vessel.

同时从结构动力学和疲劳设计的角度，分析了真空室的固有振型、频率及真空室在瞬时电磁力、地震载荷等动态载荷作用下的响应问题，理论给出了真空室在使役期内的疲劳用度累计损伤系数，评价了真空室的疲劳寿命情况。

A vacuum cleaner has a vacuum pump with a housing (102) including a lobed chamber (104) having an epitrochoidal planform.

一种真空吸尘器，它具有一个真空泵。此真空泵的壳体（102）包括一个具有长短辐圆外旋轮线平面形状的瓣轮腔室（104）。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新