self-contained breathing device的意思|示意
美 / /
英 / /
自给式呼吸装置
self-contained breathing device的网络常见释义
携气式呼吸护具 ...1 供气式呼吸护具 air-feed type respiratory protection equipments 4.1.2.2 携气式呼吸护具 self-contained breathing device 4.1.2.2.1 氧气呼吸器 oxygen breathing apparatus ..