Casing liner
[化] 壳体衬板; 泵壳O型环
🧩 词语组成解析
casing
[['keisiŋ]]
n. 箱, 盒, 包装, 框, 套管\\n[化] 汽车外胎
liner
['laɪnɚ]
n. 班轮，班机;衬垫，衬套;衬里;画线者;
🗣️ 情景例句
Is this your very first advanced aerobics class?
这是你第一次上有氧运动高级班吗？
Here is our contract.
这是我们的合同。
We'll have to get this contract typed as soon as possible.
我们得尽快把契约书打出来。