在已研究过的聚合体系中链段重排是重要的速度决定步骤。

In the polymerization systems studied, segmental rearrangement is the important rate - determining phenomenon.

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加息的步骤和时点由经济复苏的速度来决定，但目前仍保持官方现金利率不变。

The pace and timing of increases will be guided by the speed of recovery, but for now the OCR remains on hold.

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