Dental amalgams, the silver-colored material used to fill teeth after removal of a cavity, include liquid mercury and a powder that contains silver, tin, copper, zinc, and other metals.
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3. 谁已非常尖锐的眼睛观察气体分子，并开辟了皮瓣每次当快速分子在左边的腔洞的办法。
Who has very sharp eyes observes the gas molecules and opens the flap every time when a quick molecule in the left chamber approaches the hole.
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4. 与自体骨移植材料相比，脱蛋白牛松质骨与自体红骨髓结合后对修复腔洞性骨缺损疗效相当。
To compare with autologous bone graft, deproteined bovine cancellous bone and an autogenous red marrow had an identical effect for repairing bony cavity defect.
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5. 内眦部和眼睑皮肤红肿、溃烂腔洞形成；
Skin of inner canthus and eyelids appeared red swollen, ulceration with cave formation.
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6. 内眦部和眼睑皮肤红肿、溃烂腔洞形成；
Skin of inner canthus and eyelids appeared red swollen, ulceration with cave formation.
