| 摘要 |
The two outer parts (2, 3) form angles with the middle part (1) of the tool. When the tool is viewed at right angles to the plane in which the outer parts form angles with the middle part, the work tool strip (4) is not in contact with this middle part. When the tool is viewed in the previously mentioned plane the work tool strip appears to lie in a different plane from the rest of the tool. |
