查询词典 Ac.

The simulation results prove that using the SimPowerSystem of MATLAB to simulate the speed control procedure is simple and easy to operate. It can help us understand and design the AC motor speed control by terminal voltage system.

仿真实验结果表明，结合SIMULINK中的电气控制模块库进行仿真，具有建模简单、结构直观和操作灵活等优点，有助于设计和了解异步电动机调压调速系统。

PVC insulation jacket and control cables used for 450/750V AC voltage and under control, monitoring and protection of the loop line and so on, the wires used to control a crane used to control cable.

聚氯乙烯绝缘和护套控制电缆用於交流电压为450/750V及以下控制、监控回路及保护线路等场合，该电线应用於控制一种吊机用控制电缆。

PVC insulation jacket and control cables used for 450/750V AC voltage and under control, monitoring and protection of the loop line and so on, the wires used to control a crane used to control cables.

聚氯乙烯绝缘和护套控制电缆用於交流电压为450/750V 及以下控制、监控回路及保护线路等场合，该电线应用於控制一种吊机用控制电缆。

The main products have three-phase AC / DC motor.

主要产品有三相交流/直流电机。

Focuses on a variety of magnetic starter circuit form, cabin air, the typical pump control circuits, refrigeration equipment, electrical control circuits, AC three-speed anchor machine control circuit.

着重介绍磁力启动器的各种电路形式，机舱风、泵的典型控制电路，冷藏设备的电气控制电路，交流三速锚机的控制电路。

To transmit sound by AC earphone and vibrator, to write the minimal hearing threshold in each frequency.

通过气导耳机和骨导振子传声，由此可判断出人耳在各个频率上所能听见的最轻的声音。

In the past, pure tungsten was the only choice for AC TIG welding.

在过去，唯一的选择是纯钨交流TIG焊。

Today, the next generation of this technology - AC TIG inverter - features three advanced squarewave technology capabilities.

今天，新一代的这种技术交流TIG焊变频三个特点矩形先进技术的能力。

Q: What type of tungsten should I use for AC and DC TIG welding?

问：我应该用什么样的交直流TIG焊钨电极？

AC TIG welding process is still widely used because that each welding process has its own characteristics.

鉴于各种新型焊接方法的自身特点，目前市场上占主流的仍然是交流TIG 焊接。

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。