常見例句雙語(yǔ)例句In the handheld type oil-level meter, the ultrasonic sensor was used as transducer to detect the oil-level which was achieved by no contact;手持式油位計(jì)以超聲波換能器作為傳感器件，實(shí)現(xiàn)了油位的非接觸測(cè)量； 返回 ultrasonic level meter