reference coupler造句

iec provisional reference coupler for the calibration of earphones used in audiometry
测听耳机校准用iec临时参考耦合腔
iec reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts
测试戴耳塞机助听器用的iec基准耦合腔
specification for reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts
测量耳机及耳内助听器用基准耦合器规范
It's difficult to find reference coupler in a sentence. 用reference coupler造句挺难的