闭路循环回用  full-closed circulating recovery

闭式循环回收系统  closed recycling system

钢丸回收循环利用  using of the recycled steel shot

供热系统的循环环  heating circuit

锅炉循环回路  boiler circuit

横断的循环  Cross-circulation

回路循环  loop around

回路循环测试  loop around test

回路循环测试线  loop-around test line

回收循环  recovery and recycling

回收循环使用  Recirculation

开始断裂循环数  cycle of initiating crack

开式循环回收系统  open recycling system

空转再循环回路  idle recirculation loop

冷却剂再循环回路  coolant recirculation loop

硫酸盐法制浆回收循环  kraft pulping recovery cycle

强制循环回路  forced-circulation loop; Loop; forced-circulation

热循环回路  thermocycling loop

循环环路  circulation loop