查询词典 isolation

Research of chlorine in coal and isolation characteristics of chlorine in coal combustion process.

煤中氯的分布及燃烧过程中氯析出特性的试验研究。

Objective: To study the isolation and culture of chondrocyte of joint cartilage, and the influence of EGF on its growth and dedifferentiation.

目的：研究关节软骨细胞的原代分离及体外培养，了解表皮细胞生长因子对其生长和去分化趋势的影响。

This filter is ideal for high performance applications where spectral isolation, flattop filter function and low chromatic dispersion are required.

此滤波器适用于频谱隔离，平顶过滤功能和需要低色散的高性能应用中。

The present favourite is the evolution of cichlid fish in African lakes, where the question of reproductive isolation is much more complex.

目前最喜欢提到的例子是非洲湖泊中鲷鱼的进化，该例子中生殖隔离问题相当复杂。

This is the most complete demonstration so far of speciation through sensory drive without geographical isolation. Our results also provide a mechanistic explanation for the collapse of cichlid fish species diversity during the anthropogenic eutrophication of Lake Victoria.

除了为证明物种形成可以通过感官驱动发生而不需要地理隔离提供明确证据外，这项工作还为在由人为原因造成的维多利亚湖富营养化期间慈鲷鱼物种多样性的崩溃提供了一个机制性的解释。

Manual microdissection in the isolation and purification of ciliated cells, can reduce the interference of impure cells, increase the cell activity, and is a satisfied technique to offer pure cells.

将手工显微分离技术应用于纤毛细胞分离和纯化降低了杂质细胞干扰，提高了细胞活性，满足了提供纯净目的细胞的实验要求。

Later, it makes some comparison with four kinds of modulation technique, and finally, it implements the three-level PWM switching power amplifier with the PWM technique. The power of the amplifier is 2kVA, and the frequency bandwidth is 10～3kHz. In the thesis, the author designs and makes the hardwares of the switching power amplifier. The hardwares contain power inverter rank circuit, control system circuit based on DSP, drive and isolation circuit, and protective circuit. The thesis also analyses the potential safety problems and put forward some solutions for the problems. Furthermore, the thesis accomplishes the software design of the control system, and successfully debugs it. The methods of designing higher power ampilfier are also discussed in the thesis. It analyses the feasibility of the methods, outlines the way of how to design higher power switching power amplifier, and does some experiments with the method of switches-parallelling.

根据电动振动试验系统对开关功放的要求，提出了以电感电流瞬时值控制技术为基础的三电平脉宽调制开关功放的设计方案，并通过系统仿真进行了原理性论证；然后设计并制作了开关功放的硬件，包括功率转换电路，基于DSP的控制电路，驱动、隔离电路以及保护电路；针对开关功放数学模型不易得出的特点，细致分析了模糊自适应PID控制方法，在此基础上编写了控制程序；研制出一台功率为2kVA，通频带为10～3kHz的三电平脉宽调制开关功放；论文中还探讨了实现大功率开关功放的方法，分析了各种方法的可行性，给出了实现大功率开关功放的思路，并进行了并联开关管实现大功率开关功放的实验。

This paper uses S parameter to analyse the effect of external connective load on the measurement value of circulator isolation.

用S参数分析了外接负载对环行器隔离度测量值的影响，给出了在测量环行器在不同环行隔离状态时外接负载的选取原则，并给出了隔离度测量误差的两个极限范围值。

Series IPF Isolation Pump Flanges are designed to isolate circulator pumps to facilitate circulator pump replacement or repairs.

系列IPF隔离泵法兰专用于将循环泵隔离开来，便于对循环泵进行更换或维修。

The influences of the circumambience soil on the vibration of dynamic equipment foundation are simulated, which reveal that the circumambience soil has a remarkable effect on the foundation vibration and almost has no effect on the vibration of isolation platform.

模拟了动力设备基础周围土体对振动的影响，计算结果表明，动力设备基础周围土体对基础的振动影响较大，但对隔振台座的振动几乎没有影响。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。