More important thing is that the method can back calculate both modulus and thickness of flexible pavement structure layers simultaneously.

既可反算路面结构层的模量，又能反算其厚度。 通过与实际值比较，其计算精度完全满足工程实际的要求。

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Combined with the BHA analysis, the models are used to realize the prediction of drilling trajectory and to back-calculate the related coefficients from the well history information.

利用该模式并结合钻柱力学三维分析，可以预测定向井井眼轨迹，还可以利用定向井井史资料，反求有关系数。

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If those popstar goals are a mask you'll need to go back to square one and calculate what really motivates you.

CNN: Is fear of failure holding you back?

Who wants to mentally calculate if you can get where you want to go and back or have to pare down your list of destinations to accomodate the range limit?

FORBES: P.S. Did I Mention the Nissan Leaf is Boring?

Data collected now that aren't in use yet include elevation data to calculate roadway grades, which may become a crucial metric for back-seat drivers being built into the next generation of trucks and cars.

FORBES: The Road Less Stupid