可驱动的

Focused on many problems existing in pressure control system of drilling pipe friction welding,such as high failure rate and poor amenability,the basic principles of friction welding and electro-hydraulic proportional technique were briefly described.

针对焊接钻杆连续驱动摩擦焊机采用开关阀组成压力控制系统存在故障几率高、可控性差等问题，将电液比例控制技术应用在摩擦焊压力控制中，实现了摩擦焊轴向压力闭环控制、滑台进给速度的开环控制；可对摩擦焊机主轴速度、轴向压力、轴向缩短量、主电机电流、油温等进行实时检测。

Man-machine inter-facial can program logic control, pneumatic, servo motor drive, advanced sterilizing and asepsis keeping.

人机界面，可编程控制、气动、伺服电机驱动，先进的杀菌与无菌保障。

"Products include reduced voltage starting controllers, variable frequency drive controllers, bubbler systems and systems utilizing programmable controllers."

这些产品包括减压启动控制装置，变频驱动控制装置，喷水系统，以及采用可编程序的控制装置系统。

The drive transfer component can be operated manually in the carriage and drive output gears in the actuator.

驱动力传递构件，可从车厢内侧手动进行操作并且可以驱动促动器内的输出齿轮。

The membrane isolation pumps is one kind of hydromass transportation hydraulic system,can reduce the cartage expense greatly,but indirectly brings the huge social efficiency,safe reliable,the work rate is high,may not stop nearly carries on the whole year to transport,does not have the material to lose nearly,the easy automatic control,to be advantageous for the maintenance management The hydraulic pressure diaphragm pump is one kind of fill domestic diaphragm pump which we develops in high-pressured,the small curr ent capacity pulp transportation aspect blank pumps plants,it and the common diaphragm pump main difference is:Has substituted for the crank connecting rod,the reduction gear using the hydraulic pump and so on aseries of equipments direct drive piston motion,this causes its structure is greatly the simplification,the cost drops greatly;When at the same time also requests the piston the commutation confidential assurance extremely accurately,but must realize this point theoretically and all has the very great difficulty in fact.

膜隔离泵就是一种浆体输送的液压系统，能大大降低运输费用，可间接带来巨大的社会效益，安全可靠，作业率高，几乎可不停地进行全年输送，几乎没有物料损耗，易于自动控制，便于维护管理。液压隔膜泵是我们开发的一种填补国内隔膜泵在高压、小流量矿浆输送方面空白的泵种，它与一般的主要区别是：利用液压泵取代了曲柄连杆、减速器等一系列装置直接驱动活塞运动，这使其结构大为简化，成本大大下降；但同时也要求活塞的换向时机要把握得非常准确，而要实现这一点理论上和实际上都存在很大难度。

But because of some disadvantages such as their complex configuration, costliness, inconvenience of maintenance, they are gradually replaced by asynchronous machines.

传统的电梯采用直流电动机驱动，存在着结构复杂、制造成本高、可维护性差等系列不足，采用异步电机取代直流电机已是大势所趋。

The user insets the money into the slit, and then the coin recognizer identify the inserted money and add it up; then the MCU sends out the signals about sellable goods by lighting the pilot lamp, so that the user can choose what he or she wants to buy; following the user presses the key related the goods which he or she wants to buy, and then the key makes single chip to start relevant parts to push out the goods, and now the buyer can get the goods. If there still left enough money, the user can buy another goods.

用户将货币投入投币口，货币识别器对所投货币进行识别；控制器根据金额将商品可售卖信息通过选货按键指示灯提供给用户，由用户自主选择欲购买的商品；按下用户选择商品所对应的按键，控制器接收到按键所传递过来的信息，驱动相应部件，售出用户选择的商品到达取物口；如果还有足够的余额，则可继续购买。

The teachability, which is a problem of driving the states of a hybrid system to a given region, is realized by designing a state feedback controller of Petri net, the firing conditions of transitions and the controller of the continuous system.

研究了系统的可达性问题，通过设计受控Petri网状态反馈控制、变迁的激发条件和连续系统的控制器，实现系统的可达性，即驱动混合系统的状态进入某一预先给定的状态区域。

Where larger sizes are required, multiple dampers sections are coupled together to operate in unison.Extended shaft for motorised drives, felt edge blades, damper position indicator and multi-modular units with alterate modules shut or open for use as mixing zone dampers.

在需要更大的尺寸时，可将多个风量调节器耦联，共同安装于延长驱动轴上，可感到叶片边缘和风量调节器位置指示器的作用，并借助可调节多模块单元的开、闭路作用，控制混合区域风量调节器的节气效果。

In the system a HCN gas absorption cell has been used as wavelength reference.

为实现高精度光纤非本征法布里-珀罗传感器和布拉格光纤光栅波长解调，设计并实现了一种基于可调谐光纤激光器的光纤传感波长解调系统，系统采用具有51条吸收谱线的氰化氢气体吸收池为波长参考基准，采用三次多项式拟合的方法来确定可调谐光纤F-P滤波器的波长与驱动电压的对应关系。

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。