city cluster theory

• 城市群理论

city cluster theory的用法和样例：

例句

1. The physical parameters of the reactor core are calculated by method of the two-group theory.
   应用双群理论计算了反应堆堆芯物理常数。
2. By using linear operator semigroup theory, it is shown that the solution obtained by the model is well-posedness.
   对模型进行了分析，运用线性算子半群理论研究了模型的解的适定性。