井筒梯子隔间 manway compartment;
热门单词
- 专用车库 private parking garage;
- 专用通讯网 private wore network; private network;
- 专用邮袋 [英] private bag;
- 专用车辆 special-purpose vehicle;
- 专用铁路 access railroad;
- 专用铣床 production miller;
- 专电
- 专用阴极射线管 special cathode ray tube;
- 专科
- 专科学校 junior college; institute; training school;technical college; vocational school; academy; junior college graduate
- 专用（电）机 special machine;
- 专约
- 专类出版物
- 专线
- 专科词典 special dictionary;
- 专线中继器 special toll trunk circuit
- 专程
- 专线旅游 special line sightseeing;
- 专美
- 专署
- 专群结合
