A fuel-air mixture below the lower explosive limit is too().
When required to work where there may be explosive gases, you should use tools which are ()
Which of the following will be desirable properties of refrigerant?() (1) non-explosive (2) non-corrosive (3) that it doesn’t react with lubricants
When required to work where there may be explosive gases, you should use tools which are ()
Cargoes which()an explosive,inflammable,poisonous and corrosive nature are called dangerous goods.
A fuel-air mixture below the lower explosive limit is too().
Goods of an inflammable,explosive or dangerous nature to the shipment whereof the carrier,master or agent of the carrier,has not consented,with knowledge of their nature and character,may at any time before discharge,()at any place or destroyed or rendered innocuous by the carrier without compensation.
The explosive range of a mixture of flammable vapors is specified as a percentage of ().
Explosive and flammable gasses are most likely to be encountered on a vessel().
出口商品包装上“EXPLOSIVE”为()。