Time-estimating of arrival的用法和樣例：
例句
- Yet rapid and accurate calculation of preestimate time proves to be difficult.
快速精確地計算重合閘時間預估值是其難點。 - This paper presents a stochastic calculus approach to this problem, deduces formulae to calculate the preestimate time, gives some thoughts of concrete realization.
本文提出了解決這一難題的隨機分析方法，導出了時間預估值的計算公式，並給出了具體實現思路。
