Slab symmetry
[计] 片形对称
🧩 词语组成解析
slab
[slæb]
n. 厚板，平板，厚片;混凝土路面;
v. 把…分成厚片;用石板铺;
🗣️ 情景例句
I would like a single room.
我想要一个单人间。
I've never read a more stirring story.
我从来没读比这更激动人心的故事。
So was born the echo-sounding apparatus, now in general use in ships.
这样就产生了目前各种船舶上普遍应用的回声探测仪。