发动机机舱防溅罩
engine compartment spray shield
医用防护口罩
Protective face mask for medical use
medical mask
安全防护机制
Security protection mechanism
玻璃钢防护罩
FRP protective coverboard
玻璃钢防护罩支架
support for FRP protective coverboard
超压防护舱室
compartment with overpressure protection
动力输出轴主防护罩
power take-off master shield
反差控制紫外线防护护目镜
ultraviolet contrast-control safety goggles