取代物 meaning in English
substitute
Examples
- Di-, tri-and tetra-substituted material show even more regularity with respect to the appropriate typical patterns .
2-，3-，4-取代物和对应的典型图样比较时，具有更多的规律性。 - Standard test method for methoxyl and hydroxypropyl substitution in cellulose ether products by gas chromatography
气相色谱法测定纤维素乙醚制品中甲氧基和羟丙基取代物的标准试验方法