词汇	first storey
释义	first storey 二楼
随便看	standard reference frequency standard reference instrument standard reference loudness tape standard reference material standard reference materials Standard Reference Materials standard reference materialsrm standard reference materialSRM standard reference nutrient data bank standard reference position standard reference sample standard reference state standard reference surface standard reference table standard reference tape standard reference telephone circuit standard reference temperature standard reference zero standard reference zero for the callbration standard reflecting plate standard reflection shade guide standard reflector Standard reflux method standard refraction standard refractive modulus gradient