whorl相关论文
本文介绍了一种能高效地剪除毛豆壳头尾两端、螺蛳尾部,分切长片状、茎杆状蔬菜的加工设备,采用径向刃与圆周刃结合的扇形刀具,有......
以水和空气两相系统为研究对象，建立螺旋气升式内环流反应器冷模实验装置，采用压差法测定导流筒升流区气含率，用电导法分别实测了升流......
本文介绍了基于AutoCAD平台,利用LISP编程,根据螺纹加工原理、三维实体造型和对象布尔运算等实现螺纹加工的三维动态仿真技术。......
Increased predation losses in beef cattle in the Northern Rocky Mountains raise the importance of research concerning ma......
Loss of anti-predator behaviors in cattle and the increased predation losses by wolves in the Northe
Managing livestock near Yellowstone National Park has become an increasing challenge since conservation of wolves restri......
