段的燃料棒 segmented rod: 分節棒segmented-rod: 扇形棒segmented cylindrical rod: 分段圓棒segmented rod laser: 分節棒激光器conical segmented solid fuel rocket: 錐形分段固體燃料火箭發動機下載手機詞典可隨時隨地查詞查翻譯