Term
J-GLOBAL ID：200906034769257207
ballast
Subject category：
Subject category
Subject category of the technical term.
鉄道工学
Sciterm (2)：
Sciterm
Terms compiled by the various academic associations and the Ministry of Education, Culture, Sports, Science and Technology.
- 地学編 / 道床 / ballast
- 地学編 / 砂利【材料】 / ballast
Broader terms (1)：
Narrower terms (1)：
Thsaurus map：
Thesaurus Map
(Notice) Synonyms included only in Sciterm are not displayed
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