Special chemical cylinder
[化] 化工专用钢瓶
🧩 词语组成解析
🗣️ 情景例句
Come on. You all helped.
别这样说。你们都帮了忙。
What did he ask you?
他问你什么？
and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated.
测出回声间隔的时间，便可算出该处海洋的深度。