| 摘要 |
The cover (1) is movably mounted on top of the container (2), so that it can adopt a first position allowing a control tool (5) to be used to open or close the channel for discharging the container contents, or a second position preventing the control tool from being used. MECHANICAL ENGINEERING - The cover is rotated between the two positions. In the first position the control tool is exposed and in the second position it is concealed. |
