所有带铆钉式极靴的中体必须检查是否生锈和炭刷的长度。

All field cases with rivet type pole shoes must be inspected for rust and brush length.

youdao

所有带铆钉式极靴的中体必须检查是否生锈和炭刷的长度。

All field cases with rivet type pole shoes must be inspected for rust and brush length.

youdao