bulbyadj.膨胀的; 凸出的bulbn.球茎；电灯泡；球状物bulb thermomter球管温度计bulb rail steel球头丁字钢bulbar syndrome延髓综合征bulbus urethrae尿道球bulbospongiosus球海绵体肌bulbar excitant[化] 延髓兴奋药bulbus cinereus[医] 嗅球bulbus phthisia眼球痨bulblet in tube试管鳞茎bulbus luxation眼球脱位