Elliptical tubesheet
[化] 椭圆管板
🧩 词语组成解析
[化] 管板
🗣️ 情景例句
so experienced in the construction trade,
在建筑这一行业经验丰富
A new bicycle is out of the question - we can't afford it.
买新自行车的事谈不上 —— 我们买不起。
Please sign a copy of our Sales Contract No.156 enclosed here in duplicate and return to us for our file.
请会签第156号销售合同一式两份中的一份，将它寄回我方存档。