声纳作用距离 meaning in Chinese

asdic range
asdicrange
sonar range

In civil engineering applications , for example harbor - constructing and bridge - building , need information of sea bottom . in military engineering applications , identification of sea bottom types are vary important for match field location , low - frequency sonar distance forecast , and choosing the location for submarine
在民用方面，修筑港口，建设跨海大桥；军用方面，匹配场定位、低频远程声纳作用距离预报、潜艇沉底隐蔽地点选择等方面都有广泛的应用。