| 摘要 |
A stirrer provided with a stirring tank for containing a substance to be stirred, a stirring shaft rotatably attached inside the stirring tank, and a stirring blade attached to the stirring shaft, wherein the stirring blade has fins, the fins having a fin body and a groove opening in the rotation direction, the groove extending in a direction intersecting the direction passing through the rotation radius centered on the axial center of the stirring shaft. |
