Volute casing cover
[化] 联结蜗壳底盘
🧩 词语组成解析
n. 螺旋形, 盘涡形, 涡形花样, 涡螺\\na. 涡形的, 螺旋形的
casing
[['keisiŋ]]
n. 箱, 盒, 包装, 框, 套管\\n[化] 汽车外胎
🗣️ 情景例句
I'll hold on to them for you.
我为你保管吧。
Why are you so sleepy?
你为什么这样想睡？
Yes, and we must stop people walking on this floor until it's firm. It may be necessary to put up a notice saying Keep off. Another thing, we' ll have to drill a hole in the wall for the electric wires.
是的，因此在地板牢固前，我们必须防止人们从地板上行走。可能还需要竖一个布告牌，写上“不得践踏”。还有，我们必须在墙上钻一个电线孔。