短語詞組短語feedback regulation mechanism 反饋調(diào)節(jié)機制positive feedback coupling mechanism 正反饋耦合關系feedback integrated mechanism 反饋式組合feedback inhibitor mechanism 反饋機制feedback control mechanism 反饋控制機制limitation of feedback mechanism 反饋機制能力極限positive feedback mechanism 正反饋機制dynamics feedback mechanism 動力學反饋機制inspire -feedback mechanism 激勵 返回 feedback mechanism