项目当前的执行情况是项目未来执行情况最好的指示器，因此在项目较早期使用项目动态数据可能预测项目的成本和时间安排是否超出预期。
Current performance is best indicator of future performance and therefore using trend data it is possible to forecast cost or schedule overruns at quite an early stage in a project.
位置指示器在所述播放时间棒中移动，并以可视方式告知用户其当前位置处于节目内容中所处。
A position indicator moves within the trick play bar and tells the user visually where his current position is within the program material.
位置指示器在所述播放时间棒中移动，并以可视方式告知用户其当前位置处于节目内容中所处。
A position indicator moves within the trick play bar and tells the user visually where his current position is within the program material.
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