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...
It contains the variable melody and abundant emotion of instrumentalist.它包含了多变的旋律和演奏者丰富的感情.Back at the tourist center in Tysfjord I talked to the Dutchman " instrumentalist . "回到提斯峡湾的旅游服务中心,我和那个荷兰的 [ 乐手 ] 聊了一下.This platf...
目的探讨阑尾粘液囊腺癌的临床病理特征性情况.Objective To study clinical and pathological characters of appendicular mucinous cystadenocarcinoma.泪腺性瘤,形性腺瘤 、 囊腺癌 、 形性腺癌腺癌见.Results Among lacrimal gland tumors pleomorphic adenoma, adenoid cystade...
Methods: The contents of levofloxacin and tinidazole in auristilla were determined by dual wavelength spectrophotometry.方法采用双波长分光光度法直接测定左氧唑滴耳液中主药的含量,以留样观察法考察其稳定性.The ergosterol content in mycelia of Agaricus brasiliensis...