n.加熱-冷卻

Steel is tempered by heating and then cooling it. 鋼是通過先加熱后冷卻來回火的。

Heat sometimes causes a prickly rash on the skin. 熱有時使皮膚上生剌痛的疹子。

This is a highly efficient new heating system. 這是個高效的新取暖系統(tǒng)。

Shall I turn the cooling (heating) down? 要我把冷（暖）氣調(diào)弱一點嗎?

Gases expand on heating and contract on cooling. 氣體加熱時膨脹,冷卻。

The system works on the principle that heat rises. 該項裝置是按照熱力上升的原理運轉(zhuǎn)的。