Flexible tubesheet
[化] 挠性管板
🧩 词语组成解析
[化] 管板
🗣️ 情景例句
You've been a great asset to our department.
你曾是我们部门的栋梁之材。
To crawl
爬
Do you offer any quantity discounts?
大量购买有折扣吗？