Primary teeth; Root canal therapy; Root canal filling material.
乳牙；根管治疗；根管充填材料。
After water controlling, strength of filling body and filling material quality is improved.
通过对充填砂石井出水的治理，使充填体强度提高，保证了充填质量。
The saw blades with slit filling damp material is Analyzed by the mode analysis.
对基体开细缝并填充阻尼材料的圆锯片进行有限元模态分析。
Packaging material is in use for filling up inside the convex part.
该封装材料用于填充该凸部的内部。
Use: it is suitable for filling and sealing double color material.
用途：适用于双色物料的灌装封尾。
Use: it is suitable for filling and sealing double color material.
用途：适用于双色物料的灌装封尾。
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