Characteristics of plane projection平面的投影特性 3.The general plane一般位置平面 Definition When the plane is oblique with the three projection 定义 planes,it is called a general plane. 与三投影面均倾斜的平面称为一般位置平面。 Characteristics Its three projections are all similar shapes. 投影特性 其三面投影均不反映实形，而为类似形。 The general plane 一般位置平面 请点击鼠标左键显示后面内容 3.The general plane 一般位置平面 When the plane is oblique with the three projection planes, it is called a general plane. 与三投影面均倾斜的平面称为一般位置平面。 Its three projections are all similar shapes. 其三面投影均不反映实形，而为类似形。 The general plane 一般位置平面 Definition 定 义 Characteristics 投影特性 请点击鼠标左键显示后面内容 Characteristics of plane projection 平面的投影特性