提高功率的

At the same time, in the transmission system of construction machinery up-to-date, the power transferred by the transmission is improved greatly, while the gear friction is adopted in the transfer structure, so the heat loss will influence both the lubrication and cooling of the system, and the working intensity of the structure components. Therefore, the correction of the heat balance is necessary to the system.

同时，在现代工程机械的变速传动系统中，由于行星变速箱所传递的功率有了大幅的提高，但传递结构依然大量采用齿轮摩擦传动，其热损失不仅对系统的润滑和冷却有影响，而且对结构元件的工作强度也具有很大的影响，因此，也需要对该系统进行热平衡校核。

The laser and optics properties of several kinds of laser glass have been discussed. A new method is pointed out to increase the output energy of power-limited laser that is high gain glass and low nonlinear refractive index coefficient n2 glass used in an amplifier together.

在分析几种激光基质材料的光谱和激光特性的基础上，提出了在功率受限型激光装置的主放大级中混合使用高增益激光玻璃和低非线性折射率n2玻璃的新思路，以期在降低n2的基础上提高激光装置的系统输出能力。

LED or photo aging components: the core of IC optical mouse has a constant internal integrated circuit, the LED constant current of about 50mA, the general use of the mouse high-grade intermittent sampling technique, sent intermittent conduction current is the (sampling frequency of about 5KHz), can be in the same power under the premise of testing to enhance the power LED, the high detection sensitivity.

1发光管或光敏元件老化：光电鼠标的核心IC内部集成有一个恒流电路，将发光管的工作电流恒定在约50mA，高档鼠标一般采用间歇采样技术，送出的电流是间歇导通的(采样频率约5KHz)，可以在同样功耗的前提下提高检测时发光管的功率，故检测灵敏度高。

Progress of with the development of society , science and technology andgradual improvement of people's living standard, various kinds of helpautomatic control system in life begin to enter people's life, audio power amplifer, taking one-chip computer as the core is one of them.

随着社会的发展、科技的进步以及人们生活水平的逐步提高，各种方便于生活的自动控制系统开始进入了人们的生活，以单片机为核心的功率放大器就是其中之一。

The optimal output power of ultrasonic wave was 80 W and the temperature was 50℃.

制备过程中，超声波的引人能够提高活性组分的分散性，改善活性组分的粒径，催化剂的催化加氢性能得到明显改善，超声波辅助金属诱导化学镀Ni-B/MgO催化剂的最佳输出功率为80W，制备温度为50℃。

We produce the high quality of Fushun Plant calcined petroleum coke is to create high-quality and high-power electrodes necessary for raw materials, its characteristics are more obvious in the order, the conductivity of the products has increased, the quality of its consistency than other oil Coke, and can guarantee that 100 tons to 10,000 tons of structural consensus, it is another characteristic.

我们生产的抚顺二厂优质煅烧石油焦是制造优质和高功率电极所必须的原材料，它的特点是有比较明显的顺序性，对制品的导电性有所提高，它的质量一致性比其他石油焦好，可以保证100吨到10000吨的结构一致，是它的另一个特点。

The instrument simultaneously sample for three phase voltage and current. Rotary photoelectric coding switch and LCD are used for human-computer interaction. it makes the interface compact and efficient. Utilizing the function of positive and negative edge trigger of the programmable counter array unit in MPU, signal zero-cross is captured for the phase detected based on double way. The software synchronism sampling method based on real-time parameter self-optimizing minishes period truncation error, and the measurement accuracy is improved. The digitization power measure imports traditional two-unit and three-unit methods and expands application range of the instrument. The capacity is discriminated by soft ware table-look-up on the load loss. The value of a quantity is converted to the value when reference temperature (75 ℃) from test temperature.

该仪器具有以下特点：仪器对三相电压电流同时采样；基于旋转式光电编码器和液晶显示屏的人机交互界面简洁而高效；可编程计数器阵列PCA"捕获"信号的过零点用于双向过零平均鉴相，得到准确的相位差和周期；基于实时参数自寻优的软件同步采样，有效地减小了周期截断误差，提高了测量准确度；数字化功率测量引入了传统的二表法和三表法，扩展了仪器的使用范围；实际容量根据负载损耗用软件查表的方法来判别；测量值已从试验温度折算到了参考温度(75℃)时的值。

Through studying distribution regularity of switching angle in SHET and the problem found when improving quality and efficiency of output waveform, optimal strategies that double switching angles and minimum pulses are ignored are proposed, the goal that hardware circuit is convenient to be made and more harmonics are eliminated by using less loss switching transistor is reached.

通过对特定消谐技术中开关角的分布规律及在提高输出波形质量和效率时所遇问题的研究，提出了省略开关角对及省略窄脉冲的优化策略，达到了便于硬件实现、功率开关管的损耗较小、而消除的谐波次数较多的目的。

Contraposed the problems in homegrown supercharge waterflood pumps,raised the design philosophy of fluid drive superseding traditional mechanical crank gear and designed a new style of double cylinder single-action hydraulic waterflood pump system under the precondition of satisfing water-injection technology requirements.

石油工业的发展对注水泵提出了更高的要求：一方面泵的压力越来越高，功率越来越大，而制造和维护成本要低，体积和质量也不能过大；另外由于石油工程用注水泵的工作条件十分恶劣，如何提高注水泵易损件的工作寿命，更好的满足需要是设计的关键。

The paper introduces a simple and practical method for thermal design of the power amplifier based on the author's experience. It presents an optimum design for ducted radiator,not only assuring the reliability of the equipment,but also improving the economical efficiency of the equipment.

本文通过笔者在实际工作中遇到的问题及解决方案，展示了一种比较简单实用的功率放大器热设计的方法，同时对管道式散热器进行了更深入的优化设计，即保证了设备的可靠性，又提高了设备的经济性。

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。