Frequency Units Reference 频率单位
Frequency drive units 变频驱动单元
High-frequency absorption units 高频吸收单元
Pump Units with Frequency Inverters 带频率转换器的泵设备
frequency of landscape units 景观单元频度
In this paper, we divided the double frequency crystal into numerous small double frequency units and derived the harmonic power and the double frequency efficiency in each unit.
本文中将倍频晶体分割成无数多个小倍频单元，并导出每个倍频单元中的谐波功率与倍频效率。
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