Preconcentrator
[化] 预浓缩器
🗣️ 情景例句
My company was the contractor.
我的公司承包了这项工程。
We should be able to resolve our differences.
我们应该能解决我们的分歧。
After he has retired, he will devote himself to gardening.
他退休后，将致力于园艺。