Pneumatic caisson
气压沉箱
🧩 词语组成解析
caisson
[['keisən, kə'su:n]]
n. 弹药箱, 弹药车, 沉箱(水下工程用)\\n[医] 沉箱
🗣️ 情景例句
We can write letters. It's cheaper than calling.
我们可以写信就好，那比打电话便宜。
What is happening down there?
下面发生什么事情？
The currents of air that the walls of the ship direct upwards, as well as in the line of its course, are enough to give the great bird with its immense wings sufficient sustenance and progress.
沿船体的上升的气流和沿航线向前的气流给这种巨翼大鸟以足够的浮力和推力。