成都白鸡全身羽毛白色，单冠，耳叶红色带有白斑，喙、胫黄色。
The chickens are characterized by white plumage, single comb, red ear-lobes with white spots, yellow beak and shanks.
双端固定桥设计优于单端固定桥和单冠修复。
The design of rigidly fixed bridge was superior to free-end fixed bridge and single crown.
单冠修复组在6 ~ 12个月期间的种植体边缘骨吸收更为显著。
From 6 to 12 months, the more bone resorption was observed in single crown group.
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