The linkage is dimensioned so that the linkage reaches a toggleposition 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。
2
By being able to toggle a web composition on or off, web developers and designers can have a visual guide for pixel-perfect accuracy of the position and dimensions of web page components.
借由切换网页组成的开关，网页开发者与设计师拥有可视化指导，精确位置和网页部件的尺寸。
3
Then result is got after computing according to the local position information and alarm toggle condition to judge whether to alarm.