Hydrometer
n. 液体比重计\\n[化] 液体比重计
📖 牛津释义
hydrometer
n
scientificinstrument that measures the density of liquids 液体比重计.
🗣️ 情景例句
Turn the key before you pump the pedal, or you'll flood the engine.
加水之前转动钥匙，要不发动机就给浇灭了。
I've got a lot of things to do before I can leave.
在我能离开以前，我有很多事情做。
In 1908 Lord Northcliffe offered a prize of $1,000 to the first man who would fly across the English Channel.
1908年，诺斯克利夫勋爵拿出1，000英镑，作为对第一个飞越英吉利海峡的人的奖励。