expanding probang
... expand 扩大,扩张,扩展 expander 放大器,扩张器,臌胀器 expanding probang 伞形除鲠器 expansion 扩张,膨胀 ...
umbrella probang
... umbrella 伞,伞形物 umbrella probang 伞形除鲠器 un- 不,未,缺乏,相反 ...
umbrell probng
... umbrell 伞,伞形物 umbrell probng 伞形除鲠器 un- 不,未,缺乏,相反 ...