问答题

联大学堂《机械设计制造及其自动化金属工艺学（河南理工大学）》题库及答案-2

答案：正确答案：IT01

27、尺寸公差带二要素是指公差带的

正确答案：位置和大小

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单项选择题

Take scientists involved in the research on "Two missiles and one satellite" in China over fifty years ago. At that time, we did get some help from the Soviet Union, but most of the research was conducted by Chinese scientists on their own. Out of patriotism and amid a severe famine, these scientists did almost all the calculations by hand, worked on research day and night, and finished one experiment after another. They had no one but themselves to turn to. Their diligence and devotion finally paid off. Without the spirit of self-reliance, nothing could have been possible in such a short time.
This paragraph is unified.
A、正确
B、错误

联大学堂《机械设计制造及其自动化金属工艺学（河南理工大学）》题库及答案-1

答案： 1、尺寸链计算的目的主要是进公差设计计算和（）计算

正确答案：公差校核

2、零件...