超音波法液位元元元元元元测定
ultra-sonic method of liquid meaduremert
超单元组合—超单元—单元划分
divition of “super unit combine—super unit—unit
滤清器单元输出孔
filter unit discharge port
超声换能器单元
ultrasonic transducer unit
存储器单元阵列
memory card integrated circuit
mda
带寄生单元单极子天线
monopole antenna with parasitic elements
电荷鉴别器单元
charge discriminator unit