In this investigetion, NMR data also reveals the segmental motions along ester alkyl side-chain in samples.
NMR参数还揭示了较长酯烷基侧链链段运动情况。
Their extraction ability markedly decreases with the increase of the steric hindrance from ester alkyl group.
萃取能力随着酯烷基空间位阻的增大而显著降低。
Biodiesel, fatty acid alkyl ester, is made from renewable bioenergy such as vegetable oils and animal fats.
生物柴油，即脂肪酸甲酯，是以动植物油为原料生产的可再生绿色能源。
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