sub-linear operator的用法和樣例：
例句
- By using linear operator semigroup theory, it is shown that the solution obtained by the model is well-posedness.
對模型進行了分析，運用線性運算元半群理論研究了模型的解的適定性。 - Finally some shortages currently available in the study of linear operators defined on probabilistic normed spaces are also pointed out.
亦指出了在概率賦范空間上線性運算元理論研究中目前存在的不足。
