扇形的解剖结构
A fan-shaped anatomical structure
端板扇形片的冲制
Manufacture of the Punched End-plate
扇形雾喷嘴的试验研究
Experimental Study on Fan Nozzle
扇形箱格对自身重心轴的惯性矩(Ix,I_y)
axial conversion formula of inertial moment integral
扇形有界的非线性
sector-bounded nonlinearity
变形的V形槽波导
Deformed V-groove waveguide