Deep caries based by the glass ions cementation agent, could significantly reduce composite resin pulp stimulation to protect pulp, and better effect.
深龋经玻璃离子粘固剂垫底后，能明显减轻复合树脂对牙髓的刺激作用，从而护髓效果更佳。
This kind of resin composite manhole cover with glass fiber and resin as the basic material, curing agent, accelerator as auxiliary material.
这种树脂复合型井盖以玻璃纤维和树脂为基本材料，以固化剂、促进剂等为辅助材料制成。
With the joint efforts of the scientific workers and archeologists, great achievements have made in the composite protective agent for the protection of bronze artifacts.
但经过科学研究工作者和文物工作者的共同努力，近年来复合封护剂在青铜文物保护中已取得了很大的进展。
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