Astm standard
[电] 美国材料试验协会标准
🧩 词语组成解析
[化] 美国材料试验学会
standard
['stændɚd]
n. 标准，规格;旗，军旗;度量衡标准;直立支柱;
adj. 标准的，合格的;普遍的，一般的;公认为优秀的;
🗣️ 情景例句
Which newspaper do you read?
你看哪种报纸？
I enjoyed the movie very much. I wish I had read the book from which it was made.
电影不错，我希望我读过原著。[wish + 主语 = 过去完成时 = 愿望之事在wish以前发生。]
Perhaps I' ll go to that one.
我也许会去听听那个报告。