beat frequency electrotherapy unit 差频电疗机
high-frequency unit 高频单元 ; 高频部件
frequency identification unit [电子] 频率识别装置 ; 频率识别器
radio frequency unit 无线电频率组件
poly high frequency therapy unit 多用高频治疗机
crystal frequency control unit 晶频控制装置
high frequency surgical unit 高频电刀
timing and frequency unit 定时与频率装置
integrated radio frequency unit 综合无线电频率单位
While researching the unit statistics, we will, at the first step, make statistics the frequency of the four styles of each commonly used word and classify the different words into sub-types.
在政论语体的个体统计研究中，第一步先统计出政论语体每类中的每个常用词在四种语体中的使用频率，与此同时把各类词按小类归类统计。
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。
Recent estimates of the frequency of disease transmission by a single unit of blood are shown in Table 1.
通过每一单位血液传播疾病频数的最新估计在表1中列出。
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