英语语法分析

We introduce concepts of diagonal quasi-convexity and quasi-concavity in hyperconvex metric spaces.

我们介绍了超凸度量空间中对角拟凸和拟凹的概念。

Experimental investigations show that the semiempirical concavity calculation formulation given here are practical.

提出的计算凹度的半经验公式，经过实践考验证明具有一定的实用价值。

Objective: To investigate the effects of variations in vertebral endplate concavity on the mechanical behaviors of the lumbar motion segment.

目的：研究终板凹陷程度变化对腰椎运动节段生物力学影响。