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The reverse snapback phenomenaon I-V characteristics of static induction thyristorsare physically researched.

研究了静电感应晶闸管的反向转折特性。

The I-V curves of the power SITH exhibit reverse snapback phenomena, and even turn to the conducting-state, when the anode voltage in the forward blocking-state is increased to a critical value.

当工作在正向阻断态的阳极电压增大到某一临界值时，静电感应晶闸管的I-V曲线呈现出反向转折特性，甚至转向导通态。

At last, an parameter design of RC snubber for thyristors in a engineering project is presented.

最后结合工程实例，给出了一个晶闸管阻容吸收参数设计的具体步骤。

The method is in a constant exchange between the squirrel cage induction motor access SCR as AC voltage controller.

该方法就是在恒定交流鼠笼异步电动机之间接入晶闸管作为交流电压控制器。

The methodis in a constant exchange between the squirrel cage induction motoraccess SCR as AC voltage controller.

该方法就是在恒定交流鼠笼异步电动机之间接入晶闸管作为交流电压控制器。

Rugged stainless steel gate, long-life packing, stainless steel stem, corrosion resistant yoke sleeve, and heavy duty superstructure.

坚固耐用的不锈钢闸板，经久耐用的填料，不锈钢阀杆，耐腐蚀轭架轴套，重型坚固的上部结构。

After closing a wedge type gate valve, back up the stem (to 1/4 turn) to allow room for stem expansion.

在关闭楔形闸阀后，后退阀杆（1/8"到1/4"圈），为阀杆膨胀留出空间。

Six schemes of reactive power compensation and harmonic suppression are analyzed, based on which ,the cascaded thyristor -switching capacitor compensation with step-down transformer is adopted.

分析了我国牵引变在无功补偿和谐波治理上采用的6种方案后，采用带降压变压器的晶闸管投切电容器方案。

Trigger circuit by adjusting the phase of the trigger pulse to control the on-off thyristor, which can be manually controlled to adjust the output voltage, and then, after step-down transformer can be used to obtain the magnetization of the magnetic low-voltage high-current power supply, mainly by the SCR the main voltage regulator circuit, trigger circuit, such as composition, is a broad application prospect of the exchange regulator controller.

通过调节触发电路的触发脉冲的相位来控制晶闸管的通断，从而控制输出得到可人工调整的电压，再经过降压变压器得到可用于磁化的低压大电流磁化电源，它主要由可控硅调压主电路、触发电路等组成，是一种具有广阔应用前景的交流调压控制器。

Also before the current round of market index to cattle, so in this column in early January to "take the lead cattle to potential dark horse" comments, especially re-record high in the stock after the "dark horse out of gate," said:"Due to its high innovation the absolute price of only 12 million, could intervene."

本轮行情又先于指数转牛，故本栏在1月初以"率先转牛黑马潜质"点评后，特别再在该股创历史新高后以"黑马出闸"指出："由于其创新高后绝对价仅12元，仍可介入。"

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。