例句與造句

1. An important case is the linear homogeneous second-order differential equation with constant coefficients .
   一種重要的情形是常系數二階線性齊次微分方程。
2. The existence of positive solutions of boundary value problems for a class of second - order differential equation system
   一類二階四點邊值問題正解的存在性
3. Using the index theory of fixed points for a - proper semilinear operators , we study the existence of positive solutions for the multiple point boundary value problems at rersonance . the existence theorems of positive solutions for three - point boundary value problems at rersonance for a kind of nonlinear second - order differential equation are obtained . 3
   利用a - proper半線性算子不動點指標理論，我們研究了多點共振邊值問題正解的存在性，得到了一類二階非線性微分方程三點共振邊值問題正解存在性定理。
4. It's difficult to find second-order differential equation in a sentence. 用second-order differential equation造句挺難的