Although some amount of "guesstimation" is inevitable in most estimation activities, the main risk here is its reliance on the expertise, experience, and, often, the instincts of a single individual.

尽管一定程度的“猜测”在很多评估活动中是不可避免的，它的主要风险在于它依赖于个体的知识、经验以及本能。

youdao

Agree to use broad estimation ranges rather than single-point estimates and to refine them periodically as the project progresses.

同意给出一个交货日期区间，而不是一个时间点。 可以随着项目的进展而缩短交货区间。

youdao

There are many key technologies about the single-user detection, such as synchronization between receiver and transmitter, channel estimation and diversity.

单用户检测中的关键技术很多，主要有接收端和发送端的同步，信道估计和分集等。

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