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Relative position between lines and planes School of Mechanical Engineering of DUT

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(2) (1) 5-1-5(3.4) (1.2) 5-1-4(3.4) (1.2)

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Multi-solutions （1）（1） Construct a line parallel with the given plane through point A. Multi-solutions （2）（2） 中途按 ESC 退出

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5-1-2 Construct a plane parallel with line DE,which contains line BC, and construct a H-perpendicular plane parallel with line DE through point A. 中途按 ESC 退出

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5-1-3 Construct a plane parallel with the given plane through point A. requirements: (1)with a triangle;(2)with two intersection lines. （1）（1）（2）（2） 中途按 ESC 退出

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（1）（1）（2）（2） 5-1-4(1)(2) Find the piercing point K between given plane and line, and ascertain visibility for questions (1),(2), and (4). 中途按 ESC 退出

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5-1-4(3)(4) Find the piercing point K between given plane and line, and ascertain visibility for questions (1),(2), and (4). （4）（4） （3）（3） 中途按 ESC 退出

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5-1-5(1)(2) Find the intersecting line MN between two given planes, and ascertain visibility for them. 中途按 ESC 退出

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` 5-1-5(3)(4) Find the intersecting line MN between two given planes, and ascertain visibility for them. 中途按 ESC 退出

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5-2-1 Find the intersection point K between given line and plane, then ascertain visibility of them. 中途按 ESC 退出

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5-2-2 Find the intersection point K between given line and plane, then determine visibility. Please discover as many methods as possible to solve the problem. 中途按 ESC 退出

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5-2-3(1) Find the intersection point K between given line and plane, then ascertain visibility of question (1). （1）（1） 中途按 ESC 退出

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5-2-3(2) Find the intersection point K between given line and plane, then ascertain visibility of question (1). （2）（2） 中途按 ESC 退出

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(1) Find a normal line for the given plane through point N, and locate the orthogonal intersection point S. 中途按 ESC 退出

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5-2-5 Find point trajectory which has equal distance from point A and B. 中途按 ESC 退出

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5-3-1 Find a normal line for the parallelogram KLMN through point A. 中途按 ESC 退出

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答： No Determine if the two given planes are perpendicular or not through drawing. 中途按 ESC 退出

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（1）（1）（2）（2） Construct a plane P (with a trace line) perpendicular to line segment AB through point A. 中途按 ESC 退出

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（1）（1）（2）（2） Construct a plane perpendicular to triangle DEF, which contains line AB. 中途按 ESC 退出

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5-3-5 Construct a line KL through point K, which is parallel with triangle ABC and H-perpendicular plane P. 中途按 ESC 退出

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5-3-6 Construct a plane through point K and perpendicular to both triangle ABC and V-perpendicular P. 中途按 ESC 退出

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5-3-7 Given EFG is perpendicular to ABC, Complete the horizontal projection of EFG. 中途按 ESC 退出

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5-3-8 Construct a plane passing through point K, make it perpendicular to CDE and parallel with line AD. 中途按 ESC 退出

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