词汇	Frohn reagent
释义	Frohn reagent 医弗龙试剂
随便看	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 shallow understanding shallow underwater burst Shallow Underwater Missile Shallow Underwater Missile System shallow unsymmetrical load tunnel shallow-vaulted roof shallow vein zone deposit shallow velocity model-building shallow velocity structure