bulbyadj.膨胀的; 凸出的bulbn.球茎；电灯泡；球状物bulb-angle steel球头角钢bulbospiral fibers球螺旋纤维bulb of fritillary贝母Bulb-tip culture茎尖培养Bulb and Lamplight灯泡与灯光(英文)bulb for endoscope内窥镜灯泡Bulbochaete tenuisn.纤细毛鞘藻bulbourethal gland库珀腺bulboid corpuscles球状小体bulb turbine units贯流式机组