Houdriflow catcracker
[化] 胡得利移动床催化裂化装置
🗣️ 情景例句
I call it Family Album, U.S.A.
我称之为美国写真。
Generally speaking, a contract cannot be changed after it has been signed by both parties.
一般来讲，合同一经双方签订就不得更改。
One had winter we watched the river creep up the lower meadows.
有一年冬天，天气不好，我们眼看着河水浸没了地势较低的草场。