Quadrupole spectrometer
[机] 四极质谱仪
🧩 词语组成解析
[化] 四极
n. 分光计, 谱仪\\n[化] 分光计; 分光仪
🗣️ 情景例句
when Teddy Roosevelt was President.
在Teddy Roosevelt当总统的时代。
Many receive advice only the wise profit by it.
聆忠言者众，智者独获益。
About fifty.
大约有五十本。