An amplifier or attenuator may be needed to ensure that the required level of power is transmitted through the switch.
可能就需要一个放大器或衰减器，以确保通过开关传输所需的功率。
The practicability analysis of the power flow evaluation criterion and the relationship between the vibration level and transmitted power flow are presented.
探讨了功率流分析在隔振设计中的可行性，以及功率流评估指标与振级落差指标之间的内在联系。
These are stepped up to the transmission voltage level, and power is transmitted to transmission substations where the voltages are stepped down to the subtransmission level (typically, 69 to 138 kV).
这些都加大了对传输的电压水平，并且动力被传递给传输站，其中的电压呈阶梯状下降到变速级(通常为69到138千伏)。
The driving amplifier enlarges signal to reach an adaptive level in order to drive the power amplifier. The enlarged signal is delivered to a filter and transmitted through an antenna.
驱动放大器放大信号到一个可以接受的输入量级以驱动功率放大器，放大后的射频信号被传送到天线分离滤波器进行滤波，最后通过天线发射出去。
The driving amplifier enlarges signal to reach an adaptive level in order to drive the power amplifier. The enlarged signal is delivered to a filter and transmitted through an antenna.
驱动放大器放大信号到一个可以接受的输入量级以驱动功率放大器，放大后的射频信号被传送到天线分离滤波器进行滤波，最后通过天线发射出去。
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