... earn a living as a carpenter 靠木工手艺营生 earmuffs and earplugs 耳罩及耳塞 earn (make, reap) substantial profits 获厚利 ...
基于6个网页-相关网页
earmuffs and earplugs
耳罩和耳塞
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Objective To observe the sound attenuation effect of several kinds of hearing protectors (earplugs and earmuffs) in an infrasound generator sound field.
目的观察几种护耳器（耳塞、耳罩）对次声发生器次声场的隔声效果。
youdao
应用推荐
模块上移
模块下移
不移动