允许的偏差 meaning in English

deflection allowed

Dimensions , mass and permissible variations of hot rolled flat steel
热轧扁钢的尺寸质量和允许的偏差
Blanks for optical elements ; lenses of precision optics ; permissible deviations
光学元件的坯件.第1部分:精密光学透镜.允许的偏差
The top door sheet rubs the frame . the main reason is that the frame is not vertical or there is deviation in installation
门钰顶部磨擦着门框，主要原因是安装时没有调节好门框垂直或制作允许的偏差。