insolubleadj.[化]不能溶解的；不能解决的insoluble matter.不溶物质insoluble phosphate难溶性磷insoluble particles不溶性微粒insoluble impurities不溶性杂质insoluble iron scale难溶铁垢insoluble azo colour不溶性偶氮颜料insoluble components非水溶成分insoluble riddles.解不开的谜语insoluble phosphates难溶性磷insoluble phosphorus难溶性磷