英语语法分析

Test the concept of aluminum-alloy casing with ablative lining.

测试的概念， 铝合金套管与烧蚀内层。

Effect of ablative cooling on specific impulse of rocket engine.

烧蚀冷却对发动机比冲的影响。

If treatment is desired, ablative or excisional modalities are appropriate.

如确实需要治疗，可进行消融或切除。