目的探讨改善前牙二氧化锆联冠瓷三角美学效果的方法。
Objective to discuss the methods of repairing the anterior tooth "porcelain triangle" with ZrO2-league-crown.
围隔实验研究了褶纹冠蚌、三角帆蚌与河蚬等三种淡水贝类对水环境的调控作用。
Effects of Cristaria plicata, Hyriopsis cumingii and Corbicula fluminea on restoring aquatic environment were studied.
围隔实验研究了褶纹冠蚌、三角帆蚌与河蚬等三种淡水贝类对水环境的调控作用。
Effects of Cristaria plicata, Hyriopsis cumingii and Corbicula fluminea on restoring aquatic environment were studied.
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