chemical l composition化学成分;化学成份
coal chemical group composition煤化学族组成
chemical-composition variable化学成份变量
chemical macro composition analysis常量成分分析
chemical mineralogic composition涵义化学矿物组成
chemical-composition gratings化学组分光栅
chemical group composition化学族组成
nickel chloride chemical bath composition氯化镍低温化学镀液
Non-chemical sunscreen composition发明名称
The lignin is ,the main chemical composition of plants, the organic compound which quantity is only inferior to the cellulose on the Earth, the evolution product of the plant organization. Lignin plays a vital role in plant's normal growth.
木质素是植物体的主要化学组分,是地球上数量仅次于纤维素的有机物,是植物组织进化的产物,对植物的正常生长具有重要作用。
参考来源 - 反义CCoAOMT基因转化苎麻和烟草的研究The effect of process parameters on the chemical composition and structure of titanium oxide films were studied.
研究了工艺参数对氧化钛薄膜的结构及成分的影响。
参考来源 - 改善热解碳人工心脏瓣膜材料血液相容性的研究