亚麻用来织亚麻布.Flax is used for making linen.这名工人正在给亚麻布上浆.The worker is starching the linen.羊毛料和木材送到埃及以换取亚麻布或纸莎草纸.Woollen cloth and timber were sent to Egypt in exchange for linen or papyrus....
The authors show that the hyperboloid of one sheet and the hyperbolic paraboloid are ruled surfaces.作者证实:单叶双曲面和双曲抛物面是直线曲面.Two fdmilies Of characteristic lines in the hyperbolic region are not orthogonal.在双曲型区域两族特征线互不正交.F...