Natrometer
测钠计, 钠量计
🗣️ 情景例句
I'm going to miss all of you.
我会想念你们大家的。
To navigate
航海
A temporary rudder was made on board from spare planks and it was fitted with great difficulty.
船员用备用的木板在船上赶制了一只应急用的舵，并克服重重困难将舵安装就位，