1. If I were threatened and robbed I would produce my wallet quickly, and do an
assumptive close.
如果我是威胁和抢劫我产生我的钱包迅速,做一个假设密切。
3. When an
assumptive cutting plane is passed through an object, the cross section is drawn, which is called a cut.
断面图与剖视图的区别是:断面图只画出机件的断面形状,而剖视图除了断面形状以外,还要画出机件剖切之后的投影。