单词	vacuum-drive gyroscope
释义	vacuum-drive gyroscope 真空陀螺仪
随便看	shallow trench isolation shallow-trench isolation shallow truss shallow tube well shallow tunnel Shallow tunnel by excavation shallow tunnel construction shallow tunnel construction method Shallow tunneling shallow tunneling construction shallow tunneling method shallow tunnel under unsymmetrical pressure shallow turn shallow type bucket shallow underground burial shallow underground burst shallow underground excavation shallow underground excavation method shallow underground obstacle shallow-underground-pipe jacking shallow underground space shallow underground structures shallow underground tunnel shallow underground water shallow undermining method