Sighting agent
[化] 可视指示剂
🧩 词语组成解析
sighting
[['saitiŋ]]
n. 照准；瞄准；视线
🗣️ 情景例句
You are going to miss her!
你会想念她的！
She envied John for this success.
她娘娘约翰的成功。
So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish.
从测定海深到测定鱼群，这一进展比较容易。