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An electronic control module is coupled to an electrically controlled variable flow rate pneumatic valve to control the flow rate therethrough.

电子控制模块联接到所述流速可变的电控气动阀上以控制通过其的流速。

This nucleus is composed of positively charged protons , and electrically uncharged neutrons .

原子核中包括带正电的质子，和未带电的中子。

For the floor consisting of electrically heated panels, it has been found that walling material has a great effect on room temperature.

在电热地板辐射采暖系统中，实验研究表明采暖房间维护结构的保温性能对室内温度的大小具有很大的影响。

I can ski above the water with an electrically charged motor?

我可以滑雪以上与带电电机水？

In this test the motor power is indicated on a wattmeter but the major part is backed off electrically.

在这项实验中，马达功率指示在瓦特表上，但是其主要部分被电补偿。

In this dissertation, InGaAs/InGaAsP/InP MQW microdisk laser and its characterization were presented. Some conclusions are as following: the characteristics of lasing threshold was discussed by using rate equation. The dependent relations between threshold and cavity volume, spontaneous emission coupling efficiency β were investigated. The whispering gallery mode and spontaneous emission in a microdisk geometry were then studied. Almost all spontaneous emission was coupled into the lowest order TE mode when the normalized thickness of photonics well was between 0.15 and 0.5. The design principle and device process of InGaAs/InGaAsP/InP MQW microdisk laser were presented. The microdisk lasers with the diameter of 8μm, 4. 5μm and 2μm were succesfully fabricated by using etching techniques. The pulse lasing thresholds for the microdisk with the diameter of 8μm and 4. 5μm were 170μW and 15μW, a record results compared with the published in the literature. The cw lasing threshold for a 2-μm-diameter microdisk was only a few μW. We haven't found similar report up to now. To solve the problem of directional output in a microdisk laser, the power coupling efficiency in a double disk geometry was investigated with the theory of waveguide mode couple. A new structure of electrically pumped microdisk laser with output waveguide was designed, making a foundation for the practical use of microdisk laser.

本文主要研究InGaAs/InGaAsP/InP多量子阱半导体碟型激光器的研制和特性表征，并取得如下结果：利用速率方程理论讨论了激光器激射阈值的特性，分析了阈值与腔体积和自发发射耦合系数β之间的关系；讨论了微碟光子阱结构中的自发发射特性和微碟中WGM模式特性；光子阱结构在其归一化厚度在0.15-0.5之间时，几乎全部自发发射进入到最低阶TE模式中；研究了InGaAs/InGaAsP/InP多量子阱微碟激光器的结构设计原理和器件的制备工艺；利用刻蚀方法成功制备出直径分别为8μm、4.5μm、2μm的碟型微腔激光器；直径8μm和4.5μm的微碟脉冲光泵浦激射阈值分别为170μW、15μW，是目前所见文献报导中比较低的；直径2μm的微碟连续光泵浦激射阈值仅几μW，目前尚未见到达到类似结果的研究报导；为解决微碟激光器激射光定向引出的问题，通过波导耦合模理论分析了双层碟之间功率耦合效率；据此设计了新型带耦合输出波导的电泵浦微腔激光器，为进一步研制可实用的电泵浦微腔激光器打下基础。

Many technologies of electrically small antennas and wide band antennas are discussed in theory, simulation and experiment.

在研究中采用了理论分析、数值仿真和实验验证等手段，提出了多种与主题相关的天线结构。

The amusement equipment mainly includes: The orbital train, the electrically operated wobbler, swing the crib, the swing vehicle, the seesaw, the swing, to hit the mouse machine, dingdong serial productses and so on hammer.

游乐设备主要包括：轨道火车、电动摇摆机、摇摇车、摇摆车、跷跷板、秋千、打老鼠机、叮当锤等系列产品。

Function: Throws the coin fixed time electrically operated wobbler: Puts through the power source, will invest a Yuan coin, the controller automatic accumulation counting, the machine around up and down will swing, simultaneously will broadcast the nursery song, will press the push button immediately, will make eight kind of simulation sounds, the time, automatic stopping.

电动 功能：投币定时电动摇摆机：接通电源，投入一元硬币，控制器自动累计计数，机器就会前后上下摇摆，同时播放儿歌，即时按按纽，会发出八种模拟声响，时间到，自动停止。

B. Make connections of wires to terminals of lamp holders and other accessories in a neat and workmanlike manner and which are electrically and mechanically secure, with no loose strands protruding.

B。光源灯座接线端子和其他附件之间的接线要采用灵活的便于手工操作的方式，并且要保证电气和机械上的安全，不得有松脱的现象。

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。