tempering
名词 tempering:
hardening something by heat treatment
同义词:annealing
动词 temper:
toughen (steel or glass) by a process of gradually heating and cooling
harden by reheating and cooling in oil
adjust the pitch (of pianos)
同义词:temper
make more temperate, acceptable, or suitable by adding something else; moderate
restrain or temper
形容词 tempering:
moderating by making more temperate