【化】 safeguard
assurance; insurance; insure; safety
【计】 guarding
【医】 insurance
【经】 assurance; insurance; insure; safety
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