the process of becoming hard or solid by cooling or drying or crystallization
同义词：solidifying, solidification, set, curing
the act of making something harder (firmer or tighter or more compact)
动词 harden:
become hard or harder
同义词：harden, indurate
make hard or harder
同义词：harden, indurate
harden by reheating and cooling in oil
同义词：temper, harden
make fit
同义词：season, harden
cause to accept or become hardened to; habituate
同义词：inure, harden, indurate
hardening例句
Any of various ovens for hardening, burning, or drying substances such as grain, meal, or clay, especially a brick-lined oven used to bake or fire ceramics.
窑用于加硬，燃烧或烘干物料如谷物、粗粉或粘土的各式的小窑，特指用来焙干或烧陶器的砖砌的窑
So we find that hardening operation is made up of heating and quenching.
因此我们发现淬火工序包括加热和淬硬两个步骤。
Hardening means make harder.
淬火就是促使变硬。
hardening详细解释
hard.en.ing n.（名词）The act or process of becoming hard or harder.硬化：变硬或变更硬的动作或过程Something that hardens, as a substance added to iron to yield steel.硬化剂：如加在铁上使其形成钢的硬化性物质Gradual exposure of plants to cold weather.把植物逐渐暴露在冷天气下的过程
