生物柴油是由动植物油脂或长链脂肪酸与甲醇等低碳醇合成脂肪酸甲酯，是一种环境友好型可再生能源。
Biodiesel, also known as fatty acid alkyl esters which are made from renewable biological sources such as vegetable oils or animal fats, is a sort of renewable energy of friendly environment.
短链淀粉有利于形成A型结构，而长链淀粉倾向于形成B型结构。
Shorter chain starch is favorable to form A-type crystallite; while longer chains starch is favorable to form B-type crystallite.
三酯型乌头生物碱的C位乙酰基被各种长链脂肪酰基取代的酯交换反应为首次报道。
It is the first time to report that C8-acetyl is displaced by long chain fatty acyl for triester-aconitines in the ester-exchange reactions.
本发明公开了一种星型聚（甲基）丙烯酸长链酯聚合物及其制备方法。
The invention discloses a star poly-(methyl)acrylate long-chain ester polymer and a preparation method thereof.
双突变还降低了短（聚合度（DP）5-6）和长（DP 12-23）支链淀粉链的含量、增加了中长型（DP7-11）支链淀粉的含量。
The double mutation also reduced short (degree of polymerization (DP) 5–6) and long (DP 12–23) amylopectin chain contents in the grain and increased the medium long types (DP 7–11).
双突变还降低了短（聚合度（DP）5-6）和长（DP 12-23）支链淀粉链的含量、增加了中长型（DP7-11）支链淀粉的含量。
The double mutation also reduced short (degree of polymerization (DP) 5–6) and long (DP 12–23) amylopectin chain contents in the grain and increased the medium long types (DP 7–11).
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