Application of optical basicity to metallurgical slags was discussed.讨论了光学碱度在冶金渣中的应用.Electrode regulating is a key link in electroslag furnace for energy saving and metallurgical quality improving.电极调节是电渣重熔炉的重要环节,是节约电能、提...
That was sporting of him. Or should I say cowardly.他风格真高。或者我是否应该说他很懦弱？This was a cowardly thing to do.做这种事是懦弱的行为。He was weak, cowardly and treacherous.他软弱、胆怯、奸诈。...