The plastometer thickness of No.2 coking coal and 1/3 coking coal increased dramatically by adding modified coal tar pitch, meanwhile, the coal caking indexes increased dramatically.是什么意思_The plastometer thickness of No.2 coking coal and 1/3 coking coal increased dramatically by adding modified coal tar pitch, meanwhile, the coal caking indexes increased dramatically.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句