沥青碎石；沥青碎石路
bituminouswaterproofmembrane
沥青防水膜层
BlackHillTunnel
五桂山隧道
bladder-typetank
囊式油箱
blade
叶片；桨叶
bladeantenna
刀形天线
bladeback
叶背
bladeconingangle
桨叶锥角
bladeflapping
桨叶挥舞
bladeflappingangle
桨叶挥舞角
bladepitch
叶距
bladepitchangle
桨叶角
bladeshank
桨叶柄
bladespar
桨叶梁
bladestall
叶片失速
bladestation
桨叶部位标记
bladetip
叶尖
bladetipshroud
叶冠 | 