@article{oai:soar-ir.repo.nii.ac.jp:00013730, author = {HAMAZAKI, Minoru}, journal = {Journal of the Faculty of Textile Science and Technology, Shinshu University. Ser. D, Arts}, month = {Dec}, note = {Article, Journal of the Faculty of Textile Science and Technology, Shinshu University. Ser. D, Arts 21: 19-23(1978)}, pages = {19--23}, title = {LIFETIME OF COMPONENT AND ITS ECONOMIC SIDE}, volume = {21}, year = {1978} }