平顶
plateau
平顶波
flat wave
平顶的
flat-roofed
平顶反应
flat top response
平顶方头螺栓
flattened square head bolt
平顶盖
flat deck roof
平顶天线
flat-top antenna
平顶圆头
cheese head; cylinder head
平顶正峰
flat positive peak
碰撞频率
collision frequency
偏组频率
bias-set frequency
拼合频率
hybrid frequency
频率
frequency
F; frequency
frequency
frequency
frequency
频率按键
frequency keying
频率摆动
frequency swing
频率倍增器
frequency multiplier
频率比
frequency ratio
频率编码
frequency coding
频率变化
frequency variation
频率变换
frequency conversion