If there is some uncertainty that can only be resolved by a very rapid cycle of edit-and-run, then TDD is likely to be more of a hindrance than a help.
如果存在一些不确定性只能通过快速的编辑——运行周期解决，那么TDD与其说是一种帮助，不如说是一种障碍。
Directional plans are preferred over specific plans when uncertainty is high and when the organization is in the formative and the decline stages of its life cycle.
当环境的不确定性提高，以及当组织处于生命周期的形成阶段或衰退阶段时，指导性计划比具体计划更可取。
There are many difficulties in estimating the manufacturing cost and production cycle of the die in production quoting due to the uncertainty of the man-hour of die adjusting and testing.
针对由于汽车模具调试工时难以确定所导致的制造成本和生产周期与生产实际相差较大的问题，提出了基于工时管理系统的汽车模具调试工时估计方法。
Mainly because there are a lot of uncertainty during the research of actual vehicle driving cycle, driving cycles of each city and every vehicle type are different.
主要是因为在汽车实际行驶工况研究中存在着大量不确定因素，每个城市每种车型的行驶工况都不一样。
Moreover, for a fixed speed, the upper and lower amplitudes of the wing-store system with uncertainty are obtained and the influence of the uncertainty is cognized on the limit cycle phase pictures.
进而可以得到一定来流速度下，具有不确定机翼外挂系统幅值的上下界，以及不确定参数对极限环相图的影响。
Moreover, for a fixed speed, the upper and lower amplitudes of the wing-store system with uncertainty are obtained and the influence of the uncertainty is cognized on the limit cycle phase pictures.
进而可以得到一定来流速度下，具有不确定机翼外挂系统幅值的上下界，以及不确定参数对极限环相图的影响。
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