insoluble residue meaning in English

不溶残积
不溶残渣
不溶性残渣

Standard test method for insoluble residue in carbonate aggregates
碳酸盐集料中不溶性残渣的标准试验方法
Standard test method for determination of acid - insoluble residue in biomass
生物物质中不溶酸残留物测定用标准试验方法
Phospholipid for import and export . method for determination of insoluble residue in acetone
进出口磷脂.丙酮不溶物检验方法
Phospholipid for import and export . method for determination of insoluble residue in ethyl ether
进出口磷脂.乙醚不溶物检验方法