Divide the figure you have calculated in step four by two (or similar conversion factor) in order to convert from ideal time to elapsed time.

用第四步中计算出的数字除以2(或是类似的转换因子)，由此把理想时间转换为持续时间。

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The contract is part of a conversion program aimed at rebuilding four single-seat L-159s into two-seat trainer versions.

该合同属于转换计划的一部分，此计划目的是将4个单座l - 159重建成双座训练机版本。

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“You can't do conversion as part of a postproduction process on a big movie,” Mr. Cameron said, “because no one is willing to insert the two or three or four months necessary to do it well.

“你不能对一部大片的3-D效果仅作为后期制作程序来实现，”卡梅隆说，“没人能够在有限的两到四个月内做好所有的事情。”

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