is the dashed line necessary in isometric projection？
is the dashed line necessary in isometric projection？
A.正确
B.错误
正确答案：错误
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时间：2024-01-14 20:13:03
相关答案
- 1.If a line is parallel to any line in a plane， the line is parallel to the plane.
- 2.Two lines are parallel in space provided that their respective projections on two projection planes are parallel.
- 3.The true length projection of a line appears in a projection plane that is parallel to the line。
- 4.If two projections of two lines are parallel， then the two lines are parallel in space。
- 5.How many relationships between two lines？
- 6.How many types of parallel line are there relative to projection plane？
- 7.How can you represent V projection of a point？
- 8.Which coordinates are related to H projection of a point？
- 9.A compass is used to draw circles and arcs。
- 10.Thick dashed line shown can be made surface-treatment。
热门答案
- 1.Continuous thin irregular line to indicate part sectional boundary lines or to terminate a part view， and for short break line.
- 2.Thin dashed dotted line to indicate axis line ，symmetrical center lines.
- 3.The elements of the dimension
- 4.The "R" and "? " means radius and diameter.
- 5.The possible direction of a dimension text should towards？
- 6.What does a thick line represent in drawing？
- 7.看懂铣刀头装配图，该装配体由几种零件组成。（）
- 8.在单个圆柱齿轮的画法中，齿顶圆与齿顶线用（）绘制。
- 9.组合体中所标注的尺寸包括哪些尺寸？（）
- 10.下图中两圆柱的相贯线投影是否正确？