英语语法分析

Combination of low temperature plasma technology with the selective catalytic reduction technology is the effective method to reduce emissions for lean combustion engine.

低温等离子体技术与选择性催化还原技术相结合是降低稀燃发动机排放的有效方法。

A gas flow model with laser plasma as heat source was developed based on axial symmetric Euler equations in the laser propulsion rocket engine absorption chamber.

以轴对称非定常欧拉方程为基础，建立了激光推进火箭发动机吸收室内纯气相单组分、以激光等离子体为内热源的流场模型。