question length

What is an unreasonable length of time for this purpose is a question of fact.

就此项规定而言,所谓不合理期间乃一项事实问题.

If somebody grills ( someone ) it means that they question at length in order to ascertain something.

的意思是长时间讯问某人以追查某事.

The question in article [ 1] is first proposed in this paper Formulas for calculating horizontal distance on the mean height surface between two ends of side length directly using the difference of elevation or the measured zenith distance are derived.

本文首先指出文献[1]存在的问题，推导了用高差和观测天顶距计算平距的公式，并指出这些平距皆是测边两端平均高程面上的边长；

The Committee has deliberated the question at great length.

委员会对该问题进行了细致的讨论。

In fact, the suspended pipeline has the nonlinear properties in geometry, it's length and the force of the touch down point are unknown during laying operations, so that the question is difficult to be solved.

铺设中的悬跨段管道具有几何非线性性质，其悬跨长度及着地点的受力未知，使得问题的求解难度增加。