combustible substance造句怎么写

A hypothetical substance formerly thought to be a volatile constituent of all combustible substances released as flame in combustion.

Note: combustible substances exist in the form of so lids, liquids and gases.

Permit oil, grease, or other readily combustible substances to come in contact with cylinders, valves, or other equipment in oxidizer service.

A rapid, persistent chemical change that releases heat and light and is accompanied by flame, especially the exothermic oxidation of a combustible substance.

readily combustible substance [dangerous goods]

Never permit oil, grease, or other readily combustible substances to come in contact with cylinders or valves.