Application of ion exchange technology in the purification, epimerization analysis and detection of sugar was introduced.阐述了离子交换技术在糖的纯化 、 差向异构化及分析检测方面的应用....
He directed all his energies to the task.他把全部精力都用于这项任务上。They canalize their energies into charity work.他们致力于慈善事业.The electromagnetic spectrum covers an enormous range of frequencies and energies.电磁波谱包括极大的频率和能量范围.Let no m...