[yìng huà]
（变硬） harden; stiffen; stiffening; indurascent; ossification; cure; curing
hardened into a rock
硬化为石
age hardening
经久硬化{机}
case hardening
表面硬化
harden by itself
自身硬化
The plastic was poured into the mold and left to set until it was firm.
塑料被注入模子后， 便放在一边让它慢慢凝结硬化。
[医] （组织变硬） sclerosis; hardening
the hardening of arteries; arteriosclerosis
动脉硬化
vascular sclerosis
血管硬化