您要查找的是不是：
- 开环松弛DNAopen circular relaxed DNA
- 共价闭合松弛DNAcovalently close relaxed DNA
- 环loop
- 开环DNAopen-circle DNA
- 松弛DNArelaxed DNA
- 开环制open system
- 四开环pendant collet
- 开环酶ring-opening enzyme
- 开环 dnaopen circular dna
- 开环同步open loop synchronization
- 开环固化curing reaction
- 开环特性open loop characteristic
- 开环浓导open-ring waveguide
- 电流开环electric current open-loop
- 手控开环manual control open loop
- 放水开环drain cock
- 在线开环on line open loop
- 开环辨识open-loop identification
- 开环合成ring opening synthesis
- 亲核开环nucleophilic opening ring
