短語詞組短語hollow -cylinder like melt 空心圓柱狀熔躰FGM hollow circular cylinder FGM 圓筒hollow inside cylinder 空心圓柱躰hollow compliant cylinder 空心順變柱躰hollow arbor cylinder 空心圓筒hollow hydraulic cylinder 空心液壓缸hollow oil cylinder 空心油缸hollow circular cylinder 中空圓柱;空心圓柱 返回 hollow cylinder