卵壳
1. Experts had to break the egg's shell with their fingers, but it took four hours before the chick came out.
2. When the egg hole is expanded to a certain extent, use clamp to clean excess egg shell along the edge of hole.
3. During reaming, gentle force should be used to avoid cracking the egg shell.
4. He happily joined several students in finishing a mosaic map of China, using pieces of egg shell.
5. Shake of the syringe tip is not allowed to avoid cracking the egg shell.
6. The egg's shell is transparent but it is the same size as an ordinary egg.
7. Zhang told Xinhua Tuesday that the egg looks like any other, except that its shell is a bit rough.