機器
apparatus
avoid
bacterial
bins
boots
breathing
building
chain
chemicals
clothing
coat
corrosive
cylinders
danger
dangerous
door
equipment
eyes
fabricate
face
flames
gloves
goggles
hairnet
hand
hazard
hazardous
health
hygiene
hygienic
industry
inhalation
laboratory
locked
mandatory
manufacture
manufacturing
mask
notice
protect
protective
regulations
regulatory
respirator
risk
rubbish
rules
safety
site
skin
wash