短语词组短语Performance Bottle -neck 性能瓶颈Road bottle -neck 瓶颈段bottle -neck ratio 瘤体与瘤颈宽径比financing bottle -neck 融资瓶颈Bottle e neck control 瓶颈路段管制法a bottle -neck 瓶颈Bottle e neck 瓶径;瓶颈bottleneck problem 瓶颈问题 返回 bottle neck