Among all the factors influencing individual plant yield, area per plant and time of emergence seem the most important.

改良模型中影响单株籽粒产量的各因素间，以单株面积和单株幼苗活力最为重要。

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The realization that the physical self has continuity in time, according to this hypothesis, lays the foundation for the emergence of autobiographical memory.

根据这一假说，对物质自我具有时间连续性的认识，为自传体记忆的出现奠定了基础。

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In spring, caterpillars time their emergence to coincide with the bud burst of trees; birds start nesting when they can feed those newly emerged caterpillars to their fledglings.

春天，毛毛虫的出现时间和树木的萌芽一致；鸟儿开始筑巢的时间要跟毛虫出现的时间吻合，用来哺育幼鸟。

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"This time the emergence of two powerful parties with distinct political colors is a significant development in Korean politics, " says political scientist Cho Ki Sook.

CNN: A Tale Of Two Parties

Mr. KEENE: And therefore, the emergence of another choice at this time or a prospective emergence is something that interests an awful lot of Republican voters.

NPR: Thompson, Potential GOP Force, in New Meetings

This was demographic news, to be sure, and it was stated at a time when the emergence of serious Chinese wealth was translating into more and more couples feeling they could well afford to pay the government-imposed financial penalties associated with having more than one child.

FORBES: China's New Census: The Ancient Country Is Growing Old