To prove that factor a has no effect whatever on outcome b may be important in the sense that it refutes a hypothesis.

证明因素 a 对结果 b 没有任何影响可能是重要的，因为它驳斥了一个假设。

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Heredity is not a factor in causing the cancer.

遗传并非导致这种癌症的一个因素。

《柯林斯英汉双解大词典》

Lack of cash is a limiting factor.

现金短缺是一个制约因素。

《牛津词典》

"I think,in very general terms, in the last year or two, that the strident public criticism and denunciation rom the outside has also been a factor and has in my view has been something of a mistake,"

VOA: standard.2009.11.17

A log algorithm typically is one where you cut the size of the problem down by some multiplicative factor.

对数级复杂度的算法就是指,通过一系列常量级步数的操作,可以将问题的规模。

麻省理工公开课 - 计算机科学及编程导论课程节选

And the top answer that was 82% was the Internet, something like 60% said they thought the availablity of guns was a significant factor in the Columbine's shooting.

高达82%的人认为是因为网络，约有60%的人认为,枪支的使用是一个重要因素,造成了这起枪杀案。

麻省理工公开课 - 媒体、教育、市场课程节选

Of course, money is but one factor a free agent must consider in choosing a team.

FORBES: Could Tax Savings Expedite Free Agent Baseball Signings?

Whale researchers use population models that factor a species' reproductive rate and its natural mortality to come up with an estimate of how many are likely dying.

MSN: Feds to reroute SF Bay ships to protect whales

The X Factor was a smash (10.2 million viewers for the finale), and when Cowell approached Fox in 2005 for renewal of his Idol contract, he threatened to sell X Factor to a competing network.

FORBES: Celebrity 100