This book is written to meet the practical needs of the teaching plan for the Interchangeability and Measurement Technology course. This book is compiled by combining the achievements of recent education reforms and the construction of national first-class undergraduate courses, adopting the latest national standards, with the feature of closely link theory with practical application.

This book includes 6 chapters. Chapter 1 provides a comprehensive introduction to the basic concepts of interchangeability and standardization. Chapters 2-4 introduce in detail the relevant content of size tolerance, geometric tolerance, and surface roughness from the perspective of accuracy design and basic knowledge reserve of national standards. Chapter 5 starts from error measurement technology and provides a detailed introduction to the basic content of geometric quantity detection technology. Chapter 6 provides a detailed introduction to the accuracy design of typical components for applications.

This book systematically introduces the basic knowledge of interchangeability and measurement technology, highlights basic concepts, provides specific analysis cases, and is equipped with exercise questions, aiming to deepen students understanding of the basic knowledge and apply it.

This book is suitable to be used as teaching materials or reference books for students majoring in machinery and instrumentation in higher education institutions, and can also be served as a reference book for mechanical engineering technicians.

The features of this books are as follows.

(1) ?This book strengthens the cultivation and presentation of basic concepts, basic theories, basic methods and basic skills according to the characteristics of fewer teaching hours.

(2) ?Strictly follow the latest national and international standards, as far as possible to do less but better, less class hours of teaching and students self-study.

(3) ?Highlight the scientific, systematic and practical nature of basic knowledge and theories, strengthen the cultivation of students comprehensive ability, and enable students to master the ability to solve practical problems while laying a good theoretical foundation.

(4) ?Thisbooks adopt the national standards issued at the end of 2020, and pay attention to the comparison between national standards and international standards, so that students can gradually adapt to the new requirements of the machinery manufacturing industry.

(5) ?Keepthe consistency of the basic content and the accuracy of English terms.