由两个蝴蝶翅膀形底板、一个带弹簧书夹子、一个卡棍箅子、两个卡簧和两根活动卡棍组成。

The utility model comprises two butterfly wing-shaped base boards, a book clamp with a spring, a clamp rod grate, two clamp springs and two motion clamp rods.

youdao

由两个蝴蝶翅膀形底板、一个带弹簧书夹子、一个卡棍箅子、两个卡簧和两根活动卡棍组成。

The utility model comprises two butterfly wing-shaped base boards, a book clamp with a spring, a clamp rod grate, two clamp springs and two motion clamp rods.

youdao