Tracer milling machine
[化] 靠模铣床
🧩 词语组成解析
tracer
['treisə]
n. 追踪者，描图者，（铁笔等）绘图工具;
milling
[['miliŋ]]
n. 磨, 制粉, 轧齿边\\n[化] 混炼
🗣️ 情景例句
What are the odds on her being expelled?
她会不会被开除？
Sorry, I'm engaged.
对不起，我有约在先了。
The Hubble telescope was launched into space by NASA on April 20,1990 at a cost of over a billion dollars.
哈勃望远镜于1990年4月20日由国家航空航天局发射升空，耗资10多亿美元。