这家工厂仍在使用过时的设备。

The factory still uses ___obsolete equipment.

书籍会因为电脑而过时吗？

Will books become ___obsolete because of computers?

博物馆的广告承诺一种令人兴奋的体验，所以学生们惊讶地发现这么多过时的机器毫无趣味。

The museum's advertisement promises an exciting experience, so students were surprised to find so many ___obsolete machines of no interest.