transient problem的用法和樣例：
例句
- To solve horizontal thrust at arch feet and rheological change in soft soil is the first problem for arch bridge construction on soft soil ground.
在軟土地基上建造拱橋首先要解決拱腳處的水平推力以及軟土地基的流變問題。 - The problem that phase change about ice and water was solved in the structured meshes by using FVM, which is representative of many industrial processes.
流體的相變問題的研究在工業及國防工程中具有重要的應用背景。
