closed outv.抛售(停业)closedadj.关闭的；封闭的；停业的动词close的过去式和过去分词.closed security environment封闭安全环境closed-circuit signalling闭路通信closed-loop power control闭环功率控制closed circuit interlocking闭路联锁Closed extension in a group群中的闭扩张Closed Loop Operations Test闭合回路运转试验closed- loop gain shaping闭环增益成形closed suction-irrigation闭式引流灌洗closed-door consultations不公开磋商Closed bimalleolar fracture双踝闭合性骨折