According to Mechanics theory the formulary of flexural rigidity, axial rigidity, shearing rigidity are deduced.根据连续力学原理推导了结构抗弯刚度 、 轴向刚度 、 抗剪刚度公式.Maturity is how many days, if exceed formulary day , number should pay tax...
According to Mechanics theory the formulary of flexural rigidity, axial rigidity, shearing rigidity are deduced.根据连续力学原理推导了结构抗弯刚度 、 轴向刚度 、 抗剪刚度公式.The article made analytic assessment to groovy design method, gave out mor...
这些怀想如乡愁一样萦绕得使我忧郁了.These fond recollections lingered with me like a kind of homesickness, leaving me dejected.小时侯, 乡愁是一枚小小的邮票.When I was a child, my homesickness was a small stamp.《送思果》是一篇以别愁写 乡愁 的散文.Offering Siguo " is a...