单词	sap ball
释义	sap ball 🌏树球
随便看	powder compacting press powder compaction Powder compaction process powder compacts Powder compacts of precious metal powder composite plating powder compound powder compressibility powder compressing machine powder concentrate powder concentration powder concentrator powder consolidation powder constituent powder consumption powder contact angle powder content powder continuous supplying machine powder continuous vulcanization powder conveying system powder core powdercore composite powder core composite powder cores powder core string material