英语语法分析

Reduce pressure with bilevel positive airway pressure.

减少压力，两层正压。

This is a novel method for solving nonlinear bilevel programming problems.

这是一种求解非线性两层规划问题的新颖方法。

Bilevel programming models can be used efficiently to describe the hierarchy decision system.

双层规划能有效地描述具有递阶层次结构的决策系统。