Bridge deflection is not only an important part for bridge inspection, but also a vital index to evaluate bridge safety.

桥梁挠度测量是桥梁检测的重要组成部分，是桥梁进行安全性评价的一项重要指标。

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The amount of "vital heat" produced by a specific body was viewed as a direct index of its place in the "great chain of being", a hierarchical order of rank according to degrees of perfection.

一个身体产生“生命之热”的数量直接决定了它在“存在之链”中的位置——一个依据个体的完善程度来安排的等级序列。

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As part of a healthy diet or any reasonable plan to lose weight, it is vital to understand the importance of the glycemic index (GI).

FORBES: Six Healthy Carbs To Help You Lose Weight