OBJECTIVE:To investigate the influence and mechanism of bridge combined fixation system(BCFs) on fracture healing.
目的：观察桥接组合式内固定系统对骨折愈合的影响。
The mechanisms of of the biological removal of nitrogen and phosphorus are explained. The technologies of MSBR, UCT and BCFS are analyzed.
在阐述城市污水生物脱氮除磷机理的基础上，分析生物脱氮除磷的M SBR工艺、U CT工艺和BCFS工艺。
The mechanisms of of the biological removal of nitrogen and phosphorus are explained. The technologies of MSBR, UCT and BCFS are analyzed.
在阐述城市污水生物脱氮除磷机理的基础上，分析生物脱氮除磷的M SBR工艺、U CT工艺和BCFS工艺。
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