这些古老的手工艺品如今正处于不同的衰变期。

These ancient artefacts are now in various stages of decay.

youdao

冰川期中的绝大部分所跨越的是这样一个时期，对于这一时期，没有任何元素能拥有一种恰如其分的衰变率。

Most of the Ice Age spans a period of time for which no element has as appropriate decay rate.

youdao

冰川期中的绝大部分所跨越的是这样一个时期，对于这一时期，没有任何元素能拥有一种恰如其分的衰变率。

Most of the Ice Age spans a period of time for which no element has as appropriate decay rate.

youdao