您要查找的是不是：
- Dirichlet问题Dirichlet problem
- 特征值Dirichlet问题eigenvalue Dirichlet problem
- 膜振动Dirichlet问题Dirichlet problem of membranevibration
- 退化半线性椭圆型方程的Dirichlet问题The Dirichlet Problem for a Degenerate Semilinear Elliptic Equation
- 有问题something the matter
- 没问题No problem.
- 有界凸区域上的Dirichlet问题的正则性Regularity of Dirichlet Problem in Bounded Convex Domains
- 安全问题safety issue
- 有问题的iffy
- 大问题great problem
- 提出问题interrogate
- 一般区域上凹方程的Dirichlet问题(英文)DIRICHLET PROBLEMS OF CONCAVE EQUATIONS ON GENERAL BOUNDED DOMAINS
- 关键问题sixty-four-dollar question
- 具体问题concrete issue
- 没有问题all serene
- 存在的问题open question
- 常见问题FAQ
- 环境问题environmental problem
- 处理问题handling problem
- 如果可以的话，我想提一个问题。I'd like to ask a question if I may.
