This method of manufacture evolved out of a long process of trial.

这种制造方法是在长期试验过程中逐步形成的。

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It was a long process of trial and error with the collaboration of factories.

这是一个不断试验的过程，当然也不可避免不断犯错误，这需要工厂和我们的通力合作。

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Reaching international agreement will be a long process of argument and compromise.

达成国际协议将是一个漫长的争论和妥协过程。

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At the White House, President Obama noted that Sunday's voting was only the beginning of a long process.

VOA: special.2010.03.13

A long process of transmission, interweaving, literary embellishment has gone into the creation of this account in Exodus 14 and 15.

经过长期的流传，混杂以及润色,就有了《出埃及记》14和15中的故事。

耶鲁公开课 - 旧约导论课程节选

So, the process of developing a vaccine occurred over a long period of time.

疫苗的发展经历了很长一段时间

耶鲁公开课 - 生物医学工程探索课程节选

"It's a long process of coming to like minds about what will work, " he says.

FORBES: On The Cover/Top Stories

This was a long process of trial and error, of putting together, and looking at backtesting.

FORBES: Use the RCI to Gauge Market Strength

In his lengthy statement before announcing the verdict, Mr. Rifaat seemed to set the stage for a long process of appeals.

WSJ: Verdicts in Mubarak Case Spark Anger in Egypt