提出用重影线法判断两重影直线的相对位置和求解一般位置直线与平面相交求交点判别可见性的新方法。
A new method was put forward to find the intersection line and determine its visibility of general position lines and planes using overlapped projection lines.
用推广功的互等定理法，给出了求解复杂边界条件矩形板的弹性力学平面问题的一般近似解，并给出了计算实。
The method of reciprocal theorem is extended to find common probable solutions of plane problems of elasticity of the rectangular plate with various edge conditions.
将机车作为一个整体系统，用17个自由度描述机车在一般情况下横向平面的空间位置。
Suppose we view a locomotive as a whole system, the space configuration of each locomotive is described by a 17-freedomed in horizon surface.
本文以一般位置平面为辅助截平面，用求迹线方法，在一个视图求作两单曲面偏交交线。
With the ordinary camber used as auxiliary cross section, the line of intersection of two biasing single cambers is worked out in a view with the method for line of nodes.
平面尺寸链时，一般用投影法将其转化为直线尺寸链求解。
Flat dimensional chain is always changed into linear dimensional chain using projection method.
解平面尺寸链时，一般用投影法将其转化为直线尺寸链求解。
Flat dimensional chain is always changed into linear dimensional chain using projection method.
解平面尺寸链时，一般用投影法将其转化为直线尺寸链求解。
Flat dimensional chain is always changed into linear dimensional chain using projection method.
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