字典網>> 英漢字典>> R開頭詞條>>rubber ring packing的意思 漢英字典rubber ring packing中文翻譯：【化】 填密橡皮圈英文字典字典網rubber ring packing相關詞條：rubber polishing cup rubber modified plastics rubber hydrocarbon rubber cement rubber insert rubber matrix rubberized steel conveyor belt rubber down gate rubber-asbestos plate rubber ball