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
That's what I thought.
我就是这么想的。
He's tired because he worked hard all day today.
他疲倦是因为他今天整天努力工作。
Were you in San Francisco at the time of the big earthquake in 1989?
1989年旧金山大地震时，你在那儿吗？