Isotopic indicator
[机] 同位素示踪剂
🧩 词语组成解析
a. 同位素的\\n[医] 同位的
indicator
['ɪndɪketɚ]
n. 指示器;[化]指示剂;指示者;
🗣️ 情景例句
Did she say why she had to leave today?
她说了她为什么今天非走不可吗？
A middle course is the safest.
中庸之道最保险。
Meanwhile, a microphone, which was lowered into the mine two hours ago, has enabled the men to keep in touch with their closest relatives.
与此同时，两个小时以前放下井去的一只麦克风使井下的人可以与其亲属保持联系。