安装公差 meaning in English

erection tolerance
mounting tolerance

Rolling bearings ; mounting tolerances ; general guidelines
滚动轴承.安装公差.通用指南
Cranes - overhead travelling cranes and portal bridge cranes - tolerances of manufacture and tracks laying
桥式和门式起重机制造及轨道安装公差
Then , the beam orbit correction in bepcii lianc is simulated by optimum liar program and a design study on the optimum orbit correction system for bepcii linac is discussed . the optimum corrector ' s distribution and the required tolerances of misalignment of the linac components are given
最后用改进了的liar程序对bepc直线加速器轨道进行模拟计算，讨论了该校正系统的设计研究，并给出了轨道校正系统的优化布局和对加速器部件的安装公差的要求。