sheaf theory的用法和樣例：
例句
- A deformable layer theory does not appear to be tenable in glass-reinforced composites.
變形層理論在玻璃增強複合材料中說服力不強。 - The distributions of the field variations are given.The new friction layer theory is applied and nonsteady and steady deformation are studied.
應用新的摩擦層理論，研究了非穩態和穩態變形，實現了工件成形過程的計算機動態圖形顯示。
