首先判断电流方向，确定死区电压矢量的电平；
Dead-time is compensated according to the output reference voltage vector and phase currents.
提出了地震与地下电流方向异常变化间的一种关系。
A relationship between the earthquake occurrence and the abnormal variation of directions of earth current is proposed.
这条用他的名字命名的定律，是判断感生电流方向的极有用的定则。
The law which goes by his name is a useful rule for predicting the direction of an induced current .
本文讨论了利用地下电流方向异常变化预报地震可能性的理论问题。
The present paper discusses the theoretical problems concerning the possibility of predicting earthquakes in the light of the abnormal variation of directions of earth current.
该文检测器件集射极电压确定输出电流方向，并据此实现四步换流。
In this design, the collector-to-emitter voltage is sensed to determine the directions of the output currents for the 4-step commutation strategy.
死区效应可被视为一种空间矢量，它由两个因素决定：扇区数和相电流方向。
Dead-time effects can be regarded as a kind of space-vector, which is determined by two factors: sector number and direction of phase current.
熔深和熔宽的改变只与电流的大小有密切关系，而电流方向对其影响不明显。
The change of weld depth and weld width is only related with current value but has little …
通电导线在磁场中受力运动的方向跟电流方向和磁感线(磁场方向)方向有关。
Power wire in a magnetic field direction of movement of the force and the magnetic sense of direction with the current line (magnetic field) direction related.
就绝缘法兰是否漏电，提出了电流方向法、管道电流法及接地电阻法等判断方法。
Three methods to judge the electric leakage of flange are put forward, that is, current direction method, pipeline current method and earth resistance method.
利用四位双向移位寄存器等电子元件可制作能直观显示直流电流方向的模拟演示仪。
Four-bit bidirectional shift register was used to produce the device for demonstrating the direction of direct current.
采用具有选择性的过电流方向继电器，对这种相互分隔直流系统的保护相对就简单。
Protection for these isolated systems has been a relatively simple task, which is carried out using over current directional relays with selectivity.
在尝试缠绕超导电流之后，Martini和她的小组测量了电流方向，共3410万次。
After attempting to entangle the superconducting circuits, Martinis and his team measured the directions of the currents 34.1 million times.
请注意，由于采用了约定的电流方向，因此每个元件中的电流是沿着电压下降的方向流动。
Note that conventional current flow is used, hence the current in each element is shown in the direction of decreasing voltage.
在基于零序电流方向原理的矿井低压电网选择性漏电保护中，比相误差是导致保护误动的主要因素。
The phase comparison error is the primary factor leading to mistaken action in the selective leakage protective system of underground LV networks based on zero sequence current direction.
对两种极化电压下的横联差动电流方向保护的选择元件在同杆并架双回线故障下的动作行为进行了研究。
This paper analyses selectors of transverse differential current direction protection using two types polarizing voltage for double circuit lines on the same tower.
该方法通过实时检测三相交流输出电流方向得到方向函数，利用该函数选择一个PWM周期内不同电压矢量作用时间来控制中点电流的方向，实现电压平衡。
By getting the direction function from the output AC current, the applied time of voltage vectors in one PWM period was chosen, the direction of central current was controlled for DC voltage balance.
当没有电流流通时，电极之间的电压差驱动电子反方向流动。
When no electricity is delivered, a voltage difference between the electrodes drives a current in the other direction.
电流在一个方向上电解化合物，两种金属在相反电极上沉淀。
Applying a current in one direction splits the compound, and the two metals are deposited onto opposite electrodes.
当电流通过这样一根电线时，电流间的电子被迫调整其自转方向，以吻合电线上原有电子的自转方向。
When a current flows in such a wire, the electrons that flow as electricity are forced to align their spins to those of the local atoms embedded in the wire.
理论上讲，这种机械切换电流通断或方向的方法，或许有一天会成为任何纳米尺度电路的关键元件。
In theory, this could one day provide a key component of any nanoscale electrical circuit-a way to mechanically turn the current on and off or change its direction.
根据开关的位置与流入电枢时电流的方向，电动机开始顺时针或逆时针旋转从而使座椅根据需要进行调整。
Depending on the switch position and the direction of current to the armature, the appropriate motor will either revolve clock-wise of counterclockwise to produce the desired seat movement.
这一方向的转变会将角动力(angular momentum)传递到域壁(the domain wall)上，推动域沿着电流的方向移动。
That flip transfers angular momentum to the domain wall, pushing it along in the direction of the current.
所产生的加热作用与电流像哪个方向流动无关。
The heating produced does not depend on which way current is flowing.
仪表显示电流的方向和量级。
交流电与直流电的不同之处在于交流电不断地改变其电流流动方向。
Alternating current is different from direct current in that it constantly changes its direct of flow.
观察此长线或利用仪表来显示电流的方向和量级。
View the magnetic field lines or use a meter to show the direction and magnitude of the current.
当导体的自由电子只以一个方向运动时，这样产生的电流叫做直流电，常缩写为。
When the free electrons in a conductor move in one direction only. The current thus established is called a direct current, which is often abbreviated to DC.
另外，用两极之间的电流表示励磁绕组磁动势，对应于各极之间磁场的大小和方向。
Also, MMF of the field winding is represented as electric currents in the gap between poles, with regard to magnitude and direction of magnetic field at respective poles.
装在线路中的二极管像一个只允许电流按一个方向流动的阀门。
A diode placed in a circuit ACTS like a value, allowing current to flow in only one direction.
装在线路中的二极管像一个只允许电流按一个方向流动的阀门。
A diode placed in a circuit ACTS like a value, allowing current to flow in only one direction.
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