Gelemeter
凝胶时间测定计
🗣️ 情景例句
Richard, that's the baby.
Richard是小宝宝哭了。
I'm twenty and proud that I've never fed myself!
我二十岁了，但是，以从来不会自己挣钱吃饭为傲。
it is now possible not only to locate a shoal but to tell if it is herring, cod, or other well-known fish, by the pattern of its echo.
不仅能够确定鱼群的位置，而且可以根据鱼群回声的特点分辨出是鲱鱼、鳕鱼，这是人们所熟悉的其他鱼。