Eisenhower left the White House and retired to his farm in Gettysburg.艾森豪威尔离开白宫，退隐到他在葛底斯堡的农场。He lives about 60 miles upstream from Oahe, near Gettysburg, South Dakota.他住在奥阿希湖上游约60英里处，靠近南达科他州的葛底斯堡。Your friend already gave...
此方法适用于加工不允许有正偏差的工件.This method used to machining permitting no positive deviation.依据是半径平方偏差的和.It's based on the sum of deviation of radius'square.行使 5- ( 径向偏差 ) 的地方,你的手手掌向下.Exercise 5 - ( Radial Deviation ) Pla...
Isoleucine A nonpolar AMINO ACID, synthesized from threonine.异亮氨酸:是一种非极性氨基酸, 由苏氨酸合成.Mazindol was synthesized by four steps from chlorobenzene and phthalic anhydride an overall yield of 23.4 %.以氯苯和邻苯二甲酸酐为起始原料,经四步工序合成马吲哚,总...