常見例句雙語例句A fire requires fuel to burn, air to supply oxygen , and a heat source to bring the fuel up to ignition temperature.一把火需要燃料來燃燒、空氣來提供氧氣還有使燃料到底燃燒溫度的熱量。The metal's high ignition temperature of more than 6,920 degrees Fahrenheit forces exhaust gases out at high velocity to propel rockets upward.這種金屬高達(dá)6，920華氏度的燃點(diǎn)，釋放高溫度的氣體推進(jìn)火箭前進(jìn)。If the ambient temperature remains constant, the smaller critical size and the higher critical ignition temperature are needed with the higher critical heat flux density.環(huán)境溫度不變時，如果臨界熱流密度增加，則燃料床的臨界尺寸減小，臨界點(diǎn)燃溫度增高； 返回 ignition temperature