The arrow head can be omitted when the cut structure is symmetry，。
The arrow head can be omitted when the cut structure is symmetry，。
A.正确
B.错误
正确答案：正确
Tag：
时间：2024-01-14 20:13:11
相关答案
- 1.when several parallel cutting planes are used to cut， there will be a bold line at the corner of turning point.
- 2.An object be represented as local section in the condition that both the outside and inside are complex， and its structure is not symmetry。
- 3.How much is the inclined angle of hatching for the commonly used metallic material
- 4.The three types of dimension include shape dimension， location dimension and overall dimension。
- 5.The overall length is necessary for a round end plate.
- 6.longer dimension should be outside of short ones.
- 7.How much is the axes angle of isometric projection
- 8.is the dashed line necessary in isometric projection？
- 9.What type of intersection line can you get， when a sphere cut by a plane？
- 10.If a line is parallel to any line in a plane， the line is parallel to the plane.
热门答案
- 1.Two lines are parallel in space provided that their respective projections on two projection planes are parallel.
- 2.The true length projection of a line appears in a projection plane that is parallel to the line。
- 3.If two projections of two lines are parallel， then the two lines are parallel in space。
- 4.How many relationships between two lines？
- 5.How many types of parallel line are there relative to projection plane？
- 6.How can you represent V projection of a point？
- 7.Which coordinates are related to H projection of a point？
- 8.A compass is used to draw circles and arcs。
- 9.Thick dashed line shown can be made surface-treatment。
- 10.Continuous thin irregular line to indicate part sectional boundary lines or to terminate a part view， and for short break line.