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1·The rails were covered with ice and the wheels did not dite.

铁轨上盖着冰，车轮卡不住轨。

2·This is a rather high result for the chiral recognition between the amino acid and its derivatives, which makes 2-diTe-CD a potemtial candidate in the chiral recognition and separation.

这一结果在氨基酸及其衍生物的手性识别之中是十分高的结果。