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伸展机制我们将伸展构造分成两种主要类型:一种是旋转的,另一种是非旋转的(表1)。旋转伸展所谓旋转伸展,是指在这种运动学机制中,
Stretching Mechanisms We divide the extension structure into two main types: one is rotating and the other is non-rotating (Table 1). Spin extension Spin extension refers to the kinematic mechanism,