三态性

The switching power amplifier is optimized based on the achievement of electromagnetic force, and the circuit structure of tristate power amplifier with soft-switching is designed. This circuit owns the advantages of reducing the dissipationpower on the power component and improving the speed of system dynamic response, enhancing the stability of the electromagnetic force in the final state, and the nice result is presented by the simulation. The small-signal model of the power amplifier is also established.

在实现支撑所需的电磁力基础上，对开关功率放大器电路进行了优化设计，采用三电平软开关的电路结构，以降低主功率器件的功耗、提高系统的动态响应速度、提高稳态电磁力的平稳性；仿真分析表明可以达到预期的效果；最后还建立了功率放大器的小信号模型，为控制系统的调节器设计提供了依据。

Through Iris Marion Young's "feminine body"(socialisation of side space, the three modals of the mobility of feminine body, and the spatial features of the mobility of feminine body), this research is to analyse female artistic gymnasts' body experience in their speciality and other activities and their experience in ball playing.

本研究主要目的在於透过Iris Marion Young的「阴性身体」：侧边空间社会化、阴性身体活动力的三模态及阴性身体活动力的空间性来分析女性竞技体操选手在专项、非专项的身体经验及打球经验。

The U 87 Ai condenser microphone is a large diaphragm microphone with three polar patterns and a unique frequency and transient response characteristic.

这个电容mic有着大膜片和三种独立指向性和单一频率还有良好的瞬态响应的特点。

In chapter 3, characteristic paraments, focusing structure were discussed, the processing of double cell for phase conjugation was analyzed. Designing criteria of double cell phase conjugation mirror was given out. All phase aberrations could be compensated by using phase conjugation theoretically, but compensation is only effective to phase aberration of uniform polarizing state, it is not effective to aberration by thermally induced depolarization an diffractive effecting by aperture.

在第三章，我们讨论了SBS介质的特性参数，相位共轭镜的聚焦结构，分析了双池相位共轭镜的相互作用过程，给出了相位共轭镜的设计原则；从理论上讲相位共轭技术可以完全补偿热畸变以及因各种光学不均匀性造成的光束畸变，但是相位共轭技术只对偏振态均匀的相位畸变造成的光束畸变起补偿作用，而对由于热致双折射效应造成的退偏以及光束通过硬边光阑时的衍射效应造成的光束畸变无能为力。

The results show that Cu and Zn tend to be quasi-conservative, whereas Cd, Co and Ni are remobilized over a broad salinity range in the Changjiang Estuary.

结果显示，溶解态Cu和Zn在长江口低盐度区趋于部分混合保守性，其他三种微量金属都不同程度呈现出全盐度范围内的溶出行为。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。