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	virus check virus checking virus checking software virus code virus concentration virus construction virus contamination virus control virus database virus defense virus definition virus definition files virus detected virus detection virus detection software virus emerged virus entry viruses viruses affecting viruses and malware viruses and spyware viruses and worms viruses corrupted data viruses, corrupted files, or any other similar software or viruses, corrupted files, or any other similar software or

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)—