作者把掩护梁和前、后连杆一起考虑，引出掩护梁和前、后连杆组成的虚拟系统。

The author derives a virtual system of debris shield and the front and rear linkage.

youdao

作者把掩护梁和前、后连杆一起考虑，引出掩护梁和前、后连杆组成的虚拟系统。

The author derives a virtual system of debris shield and the front and rear linkage.

youdao