83. The only cylindrical chart projection widely used for navigation is the _____.

The representation of left-hand and right-hand cylindrical helical springs are the same. (True or false: 10 points)

The representation of left-hand and right-hand cylindrical helical springs are the same. (True or false: 10 points) A: 正确 B: 错误

以下( )贴图方式适用于平面的贴图。 A: Box B: Planar C: Cylindrical D: Face

When machining three different cylindrical surfaces of a stepped shaft with the same turning tool, there are three operation steps, as the cutting parameters have been changed.

The positioning scheme of finish turning the main pin hole is（ ） A: The first positioning datum is the diameter 56 outer cylindrical surface to eliminate 4 uncertainties; the flange end and side surfaces eliminate 1 uncertainty respectively. B: The first positioning datum is the flange end to eliminate 3 uncertainties; the second positioning datum is the outer cylindrical surface with a diameter of 56 to eliminate 2 uncertainties; the side surface eliminates 1 uncertainty

When machining three different cylindrical surfaces of a stepped shaft with the same turning tool, there are three operation steps, as the cutting parameters have been changed. A: 正确 B: 错误

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

要得到图中有一条黄色短线指示贴图顶部的效果，请问我们不可能使用了下列哪项贴图类型？（） A: ［柱形（Cylindrical）］ B: ［球形（Spherical）］ C: ［收缩包裹（ShrinkWrap）］ D: ［长方体（Box）］