The biggest drawback to the technology is that it cannot travel through walls, because it requires a direct line of sight between the transmitter and the user's device.
这项技术最大的缺点是不能穿透墙壁，因为它要求发射器和用户设备可以通过直线连接。
The dash line indicates the possibility of a direct input to the control system through an angle-of-attack indicator.
虚线表示，通过攻角指示器，有可能直接输入到控制系统去。
The alternate current line side realizes the decoupling control of active power and reactive power through double closed loop and the stability of direct current voltages at the same time.
交流电网侧通过双闭环控制，实现有功功率和无功功率的解耦控制，同时具有稳定直流母线电压的能力。
The alternate current line side realizes the decoupling control of active power and reactive power through double closed loop and the stability of direct current voltages at the same time.
交流电网侧通过双闭环控制，实现有功功率和无功功率的解耦控制，同时具有稳定直流母线电压的能力。
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