我打开它的心脏，取出里面的电子管，修补一切，然后再放回原处。大功告成后，它就能像新的一样运转。

I open its heart, take the valves out, repair any damage, and then put them back in, and when I finish, it works just like new.

youdao

你知道怎样修补内管吗？

Do you know how to patch an inner tube?

youdao

目的探讨DMG光固化氢氧化钙修补前牙陈旧性根管穿孔的临床效果及可行性。

Objective To discuss the clinical effects and feasibility of repairing old root canal perforation of front teeth using DMG calcium hydroxide.

youdao