您要查找的是不是：
- 开 open
- 开环 open circular dna
- 环 loop
- 开环放大 broken-loop amplification
- 开环制 open system
- 四开环 pendant collet
- 开环DNA open-circle DNA
- 开环酶 ring-opening enzyme
- 开环剂 ring opening agent
- 开环控制 open-loop control
- 开环同步 open loop synchronization
- 开环 dna open circular dna
- 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
