原理

In recent years, the wild resources of the"Da-Huang" have decreased annually due to over exploiting, arising two problems:(1) how to identify the"official"and"unofficial"Da-Huang in the market when more and more adulterant species counterfeited"Da-Huang", and (2) how to extend the medicinal sources in the genus based on the systematic relationship.

大黄的野生资源逐年剧减，大量非药用大黄植物混入正品大黄中，由此产生了两个急需解决的重要问题：（1）如何利用有效的方法区分正品与非正品大黄；（2）如何利用植物亲缘学原理寻找新的药材植物种类来源。

Described are the composition and functions of the new infrared inspection car in Ji nan Railway Bureau,the infrared dynamic inspection equipment,the relative deviation of wheels as well as the working principles of the suspended object monitoring system and HTK-2003 type AEI equipment dynamic inspection device,and the application prospects of the car.

介绍了济南局新红外线检测车的构成及功能，红外线动态检测设备、车轮相对偏移以及垂下品监测系统、HTK—2003型AEI设备动态检测装置的工作原理以及该车的应用前景。

A kind of improved biological aerated filter with a pipe out side of the filter , where the waste water would be aerated to treat urban waste water, is researched during three months.

曝气生物滤池简称BAF，是20世纪80～90年代在普通生物滤池基础上，借鉴给水滤池工艺原理而开发出的污水处理新工艺。

Among the objects as the principle of geometric perspective and aerial perspective, and make it conveying deep stereo spatial feeling on planar painting.

在绘画中，依照几何透视和空气透视的原理，描绘出物体之间的远近、层次、穿插等关系，使之在平面的绘画上传达出有深度的立体的空间感觉。

According to corresponding compensation theory, image motion value is educed in the course of aerial photography.

依据相应的补偿原理，得出航拍图片技术过程中的理论像移量。

The base principal in controlling method is madding aerodynamic force acting on transmission line changed into approximate balance state.

此方法的基本原理是：使作用在输电线上的气动力近似地成为平衡力系，从而控制输电线舞动。

The base principal in controlling method is madding aerodynamic force acting an transmission line changed into approximate balance state.

此方法的基本原理是：使作用在输电线上的气动力近似地成为平衡力系，从而控制输电线舞动。

The device has been developed with the use of aerodynamical principle, measuring technique for feeble signal, and integration of machine-electricity. The gas percussion, rigid impact, and cell injury can be produced by altering impact tip.

应用空气动力学原理、微弱信号检测技术和机电一体化的方法研制而成，通过更换撞击头可实现柔性撞击、刚性撞击和细胞损伤，通过眼、脑、肺和细胞进行实验研究。

Real_Long applied aerodynamicist principle to produce the Supersonic, Cryogenic, Fluidized Bed Superfine Pulverizing/Classifying System and research its innovative application technology.

瑞睿机械制造厂应用空气动力学原理生产的超音速、超低温、流化床超微粉磨分级系统设备和用于创新性应用的技术，并成功地将该技术应用于工业化生产。

By applying aerodynamicist, combustion principle, we exclusively develop four patented products to produce the JZZAM-IA type stove with the features of safety, energy saving, high efficiency and convenience.

应用空气动力学、燃烧学原理，独家研发成功沼气炉具 V型火孔分火器、沼气炉灶均分器、沼气炉灶燃气阀体防腐蚀套、沼气阀体节流孔点火装置等四项专利产品，以此生产了JZZAM-IA型新型炉具，具有安全、节能、高效、方便等特点。

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。