acoustic gear造句

例句与造句

This saw the introduction of AQA-7 acoustic gear into RAN service and all RAN operational Trackers were subsequently modified to this standard.
However, although the acoustic gear has proven effective in protecting dolphins, porpoises and small whales, Morrison said the ultrasound frequency used to scare them away from nets has the opposite affect on some types of seals.
It's difficult to find acoustic gear in a sentence. 用acoustic gear造句挺难的