(一)閃燃的定義如下: 當侷限空間之空氣通路形成後，可燃性物質燃燒加劇，使可燃性氣體蓄積於天花板與空氣混合，產生滾浪現象，因高溫使可燃性氣體與空氣混合之氣體膨脹而迫使中性帶下降，直到室內溫達氣體燃點時造成全面燃燒，此稱閃燃. (二)爆燃的定義如下: 當一缺氧且高溫悶燒之空間，雖無明顯火源，但室內高溫仍加速室內可燃性物質分解產生可燃性氣體，因可燃性氣體濃度在爆炸上限之上，故不起燃燒反應. 當搶救人員進入或因其他因素導致開口產生，使新鮮空氣進入與可燃性氣體混合至爆炸範圍而產生爆炸，此稱爆燃
Deflagration (Lat: de + flagrare, "to burn down") is subsonic combustion propagating through heat transfer; hot burning material heats the next layer of cold material and ignites it. Most "fires" found in daily life, from flames to explosions, are deflagrations. Deflagration is different from detonation, which propagates supersonically through shock waves. This means that when a substance detonates, it decomposes extremely quickly instead of deflagrates. Black powder is an example of a substance that deflagrates when it is ignited.
An explosion is a rapid increase in volume and release of energy in an extreme manner, usually with the generation of high temperatures and the release of gases. Supersonic explosions created by high explosives are known as detonations and travel via supersonic shock waves. Subsonic explosions are created by low explosives through a slower burning process known as deflagration. When caused by a human-made device such as an exploding rocket or firework, the audible component of an explosion is referred to as its "report" (which can also be used as a verb, e.g., "the rocket reported loudly upon impact").
[本帖最后由 leosank 于 2018-7-13 13:50 编辑]