介绍了设计大吨位双钩桥式起重机主起升减速器采用双行星轮结构的合理性和可靠性。

The rationality and reliability of main hoist reducer adopted with double spiders structure for large bridge crane are introduced.

阿双钩封闭系统与已知的翻盖设计，对无意中穿透键盘和显示器之间的差距异物出价保护。

A double hook closure system and the known Clamshell design bid protection against foreign objects unintentionally penetrating the gap between keyboard and display.