Airtight fabric based on modified styrene thermoplastic elastomer and preparation method thereof
Polypropylene composition as well as preparation method and application thereof
Full-automatic cleaning device for vehicles entering and exiting from construction site
Forestry pest and disease monitoring unmanned aerial vehicle
Warp-knitted rolled gray fabric roll unloading device
Free vibration and buckling of composite beams with interlayer slip by two-dimensional theory
Free vibrations of the partial-interaction composite members with axial force