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since the ordinary form is converted in part into the less sweet isomer, and finally an equilibrium is attained between the two isomers: α⇌β.

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稀土偶联剂是一种特殊的化学助剂，其化学通式通常为(C3H7O)xRe(OCOR′)m(OCOR2)n(OAB)y，其中Re代表稀土元素。稀土偶联剂以白色或浅黄色小颗粒固体的形式存在，具有色浅、无味、无毒的特点，且易溶于苯、甲苯等有机溶剂。它在树脂、无机填料、颜料等领域有着 ...

units(length='cm', time='s', quantity='mol', act_energy='cal/mol') ...

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