例句與造句

1. The main frame of the telescope was built by members from scaffold tubing and mounted on an equatorial fork driven by DC electrical motors for tracking the stars.
2. They are still sometimes constructed on-site for the commissioning of large diesel generators in remote places, where discarded oil drums and scaffold tubes may form an improvised tank and electrodes.
3. It's difficult to find scaffold tubes in a sentence. 用scaffold tubes造句挺難的