对于任意的截面, 比值Mp/My叫做形状系数.For any section, the ratio Mp / My is called the shape factor.控制单元的形状是任意的.The shape of the control box is arbitrary.如果它们是可见的, 就可以被动态地放到5个任意的位置之一.If they are visible, they can be dynamically positio...
他排行居中的那个儿子5年前意外溺水身亡。His middle son died in a drowning accident five years back.小标题一律居中.Subheads should be placed in the middle of the column.他在考虑怎样在新居中布置家具.He is considering the disposition of furniture in his new house....