海词手机词典

This paper analyses the primary pro blems in the production of coal gas in nonferrous pyrometallurgy cor-poration,adopting Lurgi circulating fluidized bed gas generator to pro duce coal gas is the effective process to slove these problems.

播放读音 播放读音

以上内容独家创作,受著作权保护,侵权必究

海词词典,十七年品牌