例句與造句

1. Double - ray roller breaker is mainly used in crushing medium hard materials like ore , coal , coke , slag etc . it is mainly applicable to mineral , electrical power plant , coal , construction , chemicals plant etc
   雙光輥破碎機(jī)主要用來破碎礦石，煤，焦碳，爐渣等中硬度物料，廣泛應(yīng)用于礦山，電力，煤炭，建筑，化工等行業(yè)。
2. It's difficult to find roller breaker in a sentence. 用roller breaker造句挺難的