So, how to improve the tradeoff relationship between turn-off time and forward voltage is a key problem in power devices.

The results were that TX-KA101's its driving voltage is reasonable, have three-sect current protection, its soft turn-off time and over-current protect threshold value can be regulated.

测试结果表明，TX&KA101输出驱动电压合理，具有IGBT过流三段式保护，慢关断时间和过压保护阚值可调。

Infrared light emitting diode is used to deliver appropriate light pulse with a very short turn-off time in the range of 0.5~ 1 micro-s-econd.

利用红外发光二极管作为闪光源，获得了合适的光强和0.5～1微秒的短余辉。

Error voltage vector generated by dead-time, switching devices turn-on and turn-off time are introduced. Weakening methods that consist of decreasing carrier frequency and decreasing direct current bus voltage are educed.

给出因死区时间和开关器件开通、关断时间引起的误差电压矢量，依据误差电压矢量的表达式，采用降低载波频率和减小直流母线电压的方法削弱死区效应。

Whether the turn-on time of the same arm thyristors was uniform or not, the turn-off time was always identical.

无论导通时刻是否一致，同臂号晶闸管的关断截止时刻总是相同的。

Analyses on Turn-Off Time and On-State Voltage Drop of a New Type of Thin Emitter Thyristors with Low Loss and High Speed

新型低损耗快速薄发射极晶闸管关断时间和通态压降的分析

Having much less turn-off time, eliminating the current over-shot and improving the turn-off consistency, the proposed snubber is suitable as the load energy snubber of TEM transmitter.

实验证明，推荐电路具有关断延时短、正负脉冲一致性好、无过冲现象等特点，适宜于TEM发射机的负载能量吸收电路。

Therefore, the study of turn-off time of RSD and the improving of measurement accuracy is important on our application of RSD.

因此，有关关断时间检测的研究以及测量准确度的提高对我们应用RSD有着重要的意义。

KEY OFREINSTALL THE BACK-UP LAMP RELAY.

关闭开关.重新安装后上灯电路继电器.

Is the sender's posture open and friendly, or closed and cold?

发送者的姿势是开放的和友好的, 还是关闭的和冷淡的?

The Discloser is in possession of certain valuable information that it wishes to remain secret and confidential.

披露方拥有某些有价值的信息并希望保持该等信息的机密性；

The Recipient has requested the Discloser to disclose the information to it for the Permitted Purpose.

接收方已经请求披露方向其披露该等信息用于被许可的用途；

The Discloser has agreed to supply the information to the Recipient if the Recipient enters into this Deed to protect the secret and confidential nature of that information.

披露方已经同意向接收方披露该等信息，但接收方应当签署本保密协议以保护该等信息的机密性。

She's always been very close with her money.

她用钱总是很吝啬。

The result is going to be too close to call.

双方实力非常接近，因此结果无法预料。

The Datong Basin is a semi-closed fault basin developed in an arid dry desert environment.

山西大同盆地属干冷荒漠景观条件的半封闭型断陷盆地.

Impeller has open, semi-closed and closed three.

叶轮有开式 、 半闭式和闭式三种.

Because of no natural ventilation, semi-closed tunnel was most seriously polluted.

半密闭坑道未形成自然通风, 所以真菌数最高.

Hello, officer. Why is this road closed?

喂, 警官, 为什么前面不让走了?

I bet you could fly this thing with your eyes closed.

我打赌你眨眼之间就会让这东西飞走.

The other students in the class keep their eyes closed.

班里别的学生闭起眼睛.