In the plane problem, the sliding surface is mainly simplified into ____
A: Circular arc
B: Rectilinear figure
C: Compound
D: Dustpan shape
A: Circular arc
B: Rectilinear figure
C: Compound
D: Dustpan shape
举一反三
- What is the name of the solid surface in the figure below?[img=360x664]1803bb9e6fc6d99.jpg[/img] A: circular cone surface B: Cone-shaped surface C: Cylindrical surface D: Columnar surface
- The slotting machine is mainly used for machining the inner surface of the workpiece, and the main motion is the vertical reciprocal rectilinear motion of the tool.
- The slotting machine is mainly used for machining the inner surface of the workpiece, and the main motion is the vertical reciprocal rectilinear motion of the tool. A: 正确 B: 错误
- 在圆盘表面涂上一层化合物。 A: Apply a layer of compound on the surface of the disc. B: Apply a layer of compound on the coating of the disc. C: Spread a film of compound on the surface of the disc.
- 28（） A: surface B: coat C: shape D: appearance