closed loop testing 闭环测试 ; 闭合回路试验

open-loop testing 开路试验

open loop testing 开环测试

close-loop testing 闭环试验

process loop testing [计] 过程循环测试

testing loop 测试回路

Double-Ended Loop Testing 双端回路测试

closed loop testing system 闭环测试系统

real time close-loop testing 实时闭环测试