短語詞組短語Head & Hearing Protection 頭部及聽覺保護(hù)Hearing protection devices 需使用聽力保護(hù)器equipment of hearing protection 聽力防護(hù)用品hearing protection equipment 聽力保護(hù)設(shè)備Hearing protection must be worn 必須佩戴降噪耳機(jī)Active Personal Hearing Protection Device 主動(dòng)式個(gè)人聽力保 返回 hearing protection