n.熄滅；抑制
動詞quench的現(xiàn)在分詞形式.
Hot steel is quenched to harden it. 燒熱的鋼淬火使它堅硬。
The fire quenched. 火熄滅了。
So we find that hardening operation is made up of heating and quenching. 因此我們發(fā)現(xiàn)淬火工序包括加熱和淬硬兩個步驟。
