The relationship of this geometry to Riemann's varieties was not clear.这种几何和Riemann几何的关系是不清楚的.H. C. Whitehead theorem in Riemann manifolds is extended into Finsler manifolds.指出了Finsler流 形中任一点处凸邻域的存在性,将Riemann流形的J. H...
用杵和臼，将麸皮磨成粗粉。Using a pestle and mortar, pulverise the bran to a coarse powder.她用手指杵他的肋部把他叫醒。She prodded him in the ribs to wake him up.他自己动手用研钵和杵把冰糖研成粉。He ground the rock candy with a mortar and pestle....