毛坯生产用英语怎么说

"毛坯"在英文中通常称为"rough"或"unfinished"。这个术语通常用来描述制造过程中的中间产品，尚未经过精加工或装饰。例如，在木工、铸造或锻造等行业，"毛坯"可能是未经加工的木板、未经浇铸的铸件或未经抛光的金属零件。

一些例句如下：

The carpenter started with a rough piece of wood and turned it into a beautiful table. (木匠开始时只有一块粗劣的木板，最后把它加工成了一张漂亮的桌子。)
The foundry produced a batch of rough castings that needed to be machined and polished. (铸造厂生产了一批未经加工的铸件，需要进行机加工和抛光。)
The blacksmith heated the rough piece of metal until it was glowing and then pounded it into shape. (铁匠将毛坯金属加热至发光，然后将其打成所需形状。)