Fluorescence standard substance
[化] 荧光标准物
🧩 词语组成解析
fluorescence
[[flɔ:'res(ə)ns]]
n. 荧光, 发荧光, 荧光性\\n[化] 荧光
standard
['stændɚd]
n. 标准，规格;旗，军旗;度量衡标准;直立支柱;
adj. 标准的，合格的;普遍的，一般的;公认为优秀的;
🗣️ 情景例句
You may well say so.
你可以这么说。
Sometimes the snow was so deep we could tunnel through it.
偶尔雪会积到可以造隧道那般的深度。
they can locate and steer clear of obstacles -- or locate flying insects on which they feed.
并能通过回声来确定并躲开障碍物，或找到它们赖以为生的昆虫。