bucketn.【C】水桶；（机器上的）桶装物；大量vi.颠簸行进；下倾盆大雨vt.装在桶里bucket feeder[化] 斗式加料器bucket piston桶形活塞bucket invert戽斗反弧拱bucket number存储桶号bucket tappet气门挺柱buckets pitch斗距bucket roller戽内水辊bucket latrine桶厕Bucket Effects木桶效应bucket-wheel杓轮