【简答题】在机械加工中,经常采用 的统计分析法中,( )没有考虑工件的加工顺序,所以不能区分变值系统误差和( )。
【判断题】Chinese food is roughly divided into northern and southern styles of cooking.()
【判断题】Northern Chinese like eating Niangao while southern Chinese like Jiaozi. ( )
【判断题】Compared with northern Chinese gardens, The gardens in the south are smaller but no less exquisite.
【单选题】Chinese dumplings have become a specialty in the northern part of China because of ____.
B.
the cold and dry weather
D.
the available stuffing
【单选题】关于建筑幕墙施工的说法,正确的是( )。
C.
对于工程量大、工期紧的幕墙工程,宜采用双组分硅酮结构密封胶
【简答题】误差统计分析法中常用的有( ),( )。其中能平行指导生产过程的是( )。
【单选题】如图, , ω 1 ≠ 0 ,则 ω 1 ( ) ω 2 。
【简答题】机械加工中误差统计分析常用的方法有哪些,各有何特点?