... 换能器(基阵)指向性指数D 发射声源级SL 自杂讯级NL ...
基于108个网页-相关网页
发射声源级
Emission source level
以上为机器翻译结果，长、整句建议使用 人工翻译 。
模拟器具有低频、大功率等优点，并且发射声源级可调，可满足多种海上试验的工程需要。
This simulator has several advantages, e. g. low frequency, high power, and its transmitting sound level is adjustable, which could meet the engineering demands of kinds of open sea tests.
youdao
应用推荐
模块上移
模块下移
不移动