NO. WORD POS EHOWNET
1 半衰期 Nad {TimeSection|時段:domain={chemistry|化學},predication={change|變:duration={~}}}
2 過渡期 Nad {TimeSection|時段:predication={change|變:duration={~},aspect={Vgoingon|進展}}}
3 轉捩期 Nad {TimeSection|時段:qualification={important|重要},predication={change|變:TimePoint={~}}}