astm american society for testing materials
Astm美国材料试验协会
以上为机器翻译结果，长、整句建议使用 人工翻译 。
An American Society for Testing and Materials (ASTM) label.
美国检测与材料协会(ASTM)的标签。
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Globally, the nonprofit group ASTM International (formerly the American Society for Testing and Materials) sets voluntary safety standards for the industry regarding design, manufacturing, maintenance and operations.
BBC: The human limits of roller coasters
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