I think the tool that the quota is not "managing, blocking and pressing", just contrary, it is the important means of scientific management.
本人认为定额不是“管、卡、压”的工具，恰恰相反，它是科学管理的重要手段。
2
The invention relates to a dust-proof structure of a tool station, which is applied to the tool station and is used for blocking floating dust in the process of machining operation.