例句與造句

1. Step collets are available that are machinable to allow holding of short workpieces that are larger than the capacity of normal collets.
2. Yet another type of collet is a "'step collet "'which steps up to a larger diameter from the spindle and allows holding of larger workpieces.
3. It's difficult to find step collet in a sentence. 用step collet造句挺難的