防护装置

guard
【化】 protective device; safety guard

1.protectingdevice  2.preventor  3.safeguard  4.guardingdevice  

防护的英语翻译：

defend; entrench; fence; forfend
【医】 protection
【经】 safeguard

装置的英语翻译：

device; apparatus; fitting; installation; setting; unit
【计】 blaster; U
【化】 equipment; set; set up; setting
【医】 apparatus; device; fitting; installation; mounting; unit
【经】 equipment; installation