Poincare surface的用法和樣例：
例句
- In the third chapter we start with the Poincare group and construct various unitary representations in suitable Hilbert spaces.
第三章我們從龐加萊群著手構造合適的希爾伯特空間的多種幺正表象。 - Indeed, as for the big picture, people cannot solve the Poincare conjecture without Dr.Yau's support and his assembly of talented students' fundamental work.
確實，如果縱觀全局，沒有丘博士的支持與他號召他有才智的學生所做的基礎性的工作，人們是不可能解決龐加萊猜想的。
