Anneal means make harden steel soft and remove brittleness. 退火就是使淬火钢变软并消除其脆性。
What do you mean by anneal? 你说的退火是什么意思?
Difficulty can anneal one's best quality. 困难可以磨练出一个人最优秀的品质.
anneal
[ verb ] bring to a desired consistency, texture, or hardness by a process of gradually heating and cooling <verb.change>normalizetemper temper glass
Anneal \An*neal"\, v. t. [imp. & p. p. {Annealed}; p. pr. & vb. n. {Annealing}.] [OE. anelen to heat, burn, AS. an?lan; an on + ?lan to burn; also OE. anelen to enamel, prob. influenced by OF. neeler, nieler, to put a black enamel on gold or silver, F. nieller, fr. LL. nigellare to blacken, fr. L. nigellus blackish, dim. of niger black. Cf. {Niello}, {Negro}.] 1. To subject to great heat, and then cool slowly, as glass, cast iron, steel, or other metal, for the purpose of rendering it less brittle; to temper; to toughen.
2. To heat, as glass, tiles, or earthenware, in order to fix the colors laid on them.