Abstract: root canal perforation and instrument separation are common complications of root canal therapy.
摘要根管侧穿和器械分离是根管治疗术中常见的并发症。
The extraction and separation techniques of oligoprocyanidins(OPC) from the root of wild Sanguisorba officinalis Linn.
对吉林地区野生地榆根低聚原花青素（OPC）进行了提取分离工艺研究。
By studying the variation of root mean square radius with the separation energy, conditions for the existence of halo states are pointed out, especially of the proton halo states.
通过研究均方根半径随结合能变化的规律，指出了晕核态存在的条件，尤其是质子晕核态存在的条件。
The structure of simplified work flow model is a tree, and governmental document run and join from end to root on the tree with no separation.
简化后的公文工作流模型呈树型结构，公文从树的枝节点向根节点流转、汇合，整个流转过程没有分支。
Techniques of extraction and separation of general flavones and general saponins in astragalus root were studied and developed in this paper.
研究并开发了树脂法提取并分离黄芪中总黄酮与总甙的工艺。
Techniques of extraction and separation of general flavones and general saponins in astragalus root were studied and developed in this paper.
研究并开发了树脂法提取并分离黄芪中总黄酮与总甙的工艺。
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