所以，光诱导的单电子转移和随后的氯离子离去导致双游离基，双游离基分子内偶合成环。
Thus, photostimulated single electron transfer in CTC followed by expelling chloride ion leads to a biradical, which couples intramolecularly.
目的：探讨双侧游离端可摘局部义齿的不同固位装置对基牙的影响。
Objective: To study the influence on the displacement of abutment with various retainer designs for bilateral distal-extension removable partial dentures (RPDs).
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