In TCPN model, the earliest firing time and the latest firing time of transition as well as the duration time of transition are accentuated.

TCPN 侧重于讨论变迁的最早和最晚点火时间以及点火持续时间；

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In a speech at Carnegie Mellon University, President Obama referred to the Gulf oil spill in making the case that it is time, as he put it, to "aggressively accelerate the nation's transition to a clean energy economy."

VOA: standard.2010.06.14

You spend a lot of time talking about the transition between alchemy and modern chemistry.

在高中化学你很多时间是花在,了解从炼金术到化学的改变上。

麻省理工公开课 - 化学原理课程节选

The final piece of Wal-Mart's plan is to help part-time Wal-Mart workers transition into full-time employment if they so desire.

NPR: Wal-Mart To Hire Vets, Buy More American Products

But the shuffle may also turn out to be an excuse to extend the transition time.

ECONOMIST: Neither Hutu nor Tutsi, just Rwandan

Mr. Karzai welcomed the spring transition time frame that would put his forces in the lead.

WSJ: Obama to Speed Troop Exit