Four-circle diffractometer
[化] 四圆衍射仪
🧩 词语组成解析
four
[fɔr]
num. 四;四个;第四;
n. 四的;四个一组之物;
n. [光] 衍射计
🗣️ 情景例句
We have four people in the family, my parents, my elder brother and I.
我家有 4 口人，我的父母，我的哥哥和我。
Do you have an extension?
你有分机吗？
I don't know. I haven't made up my mind yet.
不知道。我还没下定决心呢。