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Thermal contraction and stretching

 

作者: Carl H. Hayn,  

 

期刊: The Physics Teacher  （AIP Available online 1998）
卷期: Volume 36, issue 1  

页码: 14-14

 

ISSN:0031-921X

 

年代: 1998

 

DOI:10.1119/1.879947

 

出版商: American Association of Physics Teachers

 

关键词: thermal contraction;Thermit process

 

数据来源: AIP

 

摘要:

To reduce maintenance costs, continuous railroad tracks are replacing the 39-ft lengths. Expansion gaps are being eliminated by using a Thermit welding process.

 

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