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The linkage is dimensioned so that the linkage reaches a toggle position just before it folds.
对连杆进行尺寸标注，使其刚好在折叠之时到达切换位置。
youdao
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The linkage is dimensioned so that the linkage reaches a toggle position just before it folds.
对连杆进行尺寸标注，使其刚好在折叠之时到达切换位置。
youdao