针对工程结构中广泛应用的变截面构件，提出了一个变截面平面梁单元，推导了其单元刚度矩阵和等效节点荷载公式。
A nonuniform beam finite element is presented and the element stiffness matrix and equivalent joint load are derived to analyse nonuniform members used increasingly in engineering structures.
抛物面一种有与单坐标轴平行的抛物截面和与该轴垂直的椭圆截面的平面。
A surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis.
简单而巧妙的设计使自由流畅的平面和截面成为可能，在炎热的夏天允许自然光的照射而不会过热。
Simple and yet clever design moves enable a free-flowing plan and section which allow an abundance of natural light without overheating during the hot summer days.
应用推荐