| 1. | That indicates the field direction of the expression
，指示表达式的字段方向。 |
| 2. | To specify a field direction for the parameter
可指定参数的字段方向。 |
| 3. | Class using the specified field direction and expression
使用指定的字段方向和表达式初始化 |
| 4. | Gets or sets the field direction for this direction expression
获取或设置此方向表达式的字段方向。 |
| 5. | Field direction modifiers
字段方向修饰符 |
| 6. | The current estimated normalized magnetic field direction , corrected for the fields generated by the torque coils
目前经由修正转矩线圈产生的磁场而估计到的正规化磁场方向。 |
| 7. | This web site provides information aboout groundwater remediation , field direction , marsh protection , publications ， etc
本站点的主要信息包括地下水补救处理、野外指导、湿地保护、相关出版物等。 |
| 8. | Once the field is larger than the threshold field , the molecules of liquid crystal tend to the magnetic field direction and they will align to the magnetic completely under some conditions i . e . it is saturated so it is important to calculate the threshold and saturation field
在平衡状态下，两个转矩的作用相互抵消。一旦磁场强度超过一定的阈值，液晶内部的分子将更易于沿外磁场方向的排列。一定条件下分子完全沿磁场排列，即达到饱和。 |
| 9. | The direct torque control theory is a kind of new control method after vector control theory in ac control field . it calculates and controls the torque and the flux of ac electromotor in stator coordinate using the voltage space vector . adopting the stator magnetism field direction method , it recurs to discrete pang - pang control producing pulse width modulation signal and controls the switch state of the transductor when better quality steady - state performance is produced
直接转矩控制技术是继矢量控制技术之后交流调速领域中新兴的控制技术，它采用空间矢量分析的方法，直接在定子坐标系下计算并控制交流电动机的转矩和磁链，采用定子磁场定向，借助于离散的两点式控制产生脉宽信号，直接对逆变器的开关状态进行最佳控制，以获得转矩的高动态性能。 |
