【医】 meter mask
oxygen
【医】 o; O2; oxy-; oxygen; oxygenium; phlogisticated gas
capacity; estimate; measure; mete; quantity; quantum
【医】 amount; dose; dosis; measure; quanta; quantity; quantum
【经】 volume
idea; plan; calculate; count; meter; stratagem
【医】 meter
domino; doughface; mask
【化】 face guard; face mask
【医】 facepiece; mask