回火的英文怎么说
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回火的英文： degree of hardness and elasticity of a tempered meta Backfire:an explosion of prematurely ignited fuel or of unburned exhaust gases in an internal-combustion engine. fire-proof baffle hardened and tempered Steel is tempered by heating and then cooling it Two times temper has little effect on the hardness. three times temper will decrease the hardness. "Three. They are hardening, temper and anneal. " Degree of hardness and elasticity of a tempered metal v. 适得其反，事与愿违；放出逆火，发生回火 n. 逆火，回火 The car backfired. The engine backfired noisily. To explode in the manner of or make the sound of a backfire. The President's tactics could backfire. To start or use a backfire in extinguishing or controlling a forest fire. n. 性情；脾气；心情；回火 v. 使缓和；调和；（使）回火 hardened and tempered I was in a flaming temper. She is a girl of sweet temper. He curbed his temper. Temperance is the best physic |
