Astm specifications
[化] 美国材料试验学会技术规范; ASTM技术规范
🧩 词语组成解析
[化] 美国材料试验学会
n. 规格, 规范, 明细单, 说明书, 详细的计划书
🗣️ 情景例句
Um...Alexandra, let me introduce you.
噢……Alexandra 让我来介绍一下。
What are you drawing?
你正在画什么？
In spite of all that has been said, the tourists have been picking leaves and cutting their names on the tree-trunk.
尽管有上述种种说法，但游客们还是照常摘树叶和把他们的名字刻在树干上。