英语词汇astm B221怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	astm B221
释义	Examples: American Society for Testing and Materials (ASTM)— 测试和材料协会
随便看	regulation towards regulation transformer regulation unit regulation valve regulation was adopted Regulation was amended regulation was approved by regulation was set up regulation will impact regulation within regulative environment regulative measures regulative requirements regulator regulator and filter regulator and regulated regulator arrangement regulator assembly regulator authorities regulator body regulator circuit regulator competition authority regulator compliance regulator confidence regulator gauge

英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

American Society for Testing and Materials (ASTM)—