acoustic alarm造句

例句与造句

1. Other measures, including underwater acoustic alarms, were employed in the late 1990s with the help of fishermen.
2. It can detect laser rangefinders and laser target designators and responds automatically by triggering acoustic alarms, smoke generators and other countermeasure systems.
3. A new acoustic alarm system will be installed along the Gold Coast to drive humpback whales away from shark nets, in which they can get tangled and drown, the program's manager said Thursday.
4. It's difficult to find acoustic alarm in a sentence. 用acoustic alarm造句挺难的