The theory here is that if you can't inject the dependency, you can't construct the dependent class.
这里的理论就是：如果不能注入依赖项，那么就不能构建依赖类。
2
The succession of corporate leaders can't be explained by dependent ownership theory and control right theory.
依存状态所有权理论和控制权理论都无法准确地解释企业领导人更替问题。
3
The theory of time-dependent ability is adopted to evaluate the residual service life of structure and a method is adopted to revise the variable load.