built-intimerswitch机内计时开关
built-mast复接杆
built-upbroach组合拉刀
built-upcrank组合曲柄
built-upcrankshaft组合曲轴
built-upelectrode熔焊条
built-uplinereamer镶片组合铰刀
built-uprotor组装式转子
built-upshoulderslip挂肩式套裙
built-upshouldervest挂肩式内衬衫
built-upstylebra挂肩式乳罩
Bukipulp布基浆粕
Bulaccotton布拉克棉
Bulan硝滴涕杀虫剂
Bulana布拉纳聚丙烯腈短纤维
bulbangle圆头角钢
bulbbarometer球管气压计
bulbhorn球状喇叭
bulboffritillary贝母
bulbonion洋葱
bulbplanter球茎作物种植机
bulbplate球扁钢
bulbrailsteel球头丁字钢
bulbtube球管
bulbwithbayonetcap卡口灯泡
bulb灯泡
bulb-blowingmachine灯泡吹制机
bulb-tubulatingmachine接管机
bulbedinnertube球型内管
Bulbosan三硝散杀菌剂
bulbul细布
bulbusalliibakeri野白头
bulbusalliimacrostemi薤白
bulbusfritilariae川贝
bulbusfritillariaecirrhosae云贝母 | 