Cepheid variable stars are stars whose brightness changes at regular periods.造父变星是一种光线按规律周期发生变化的恒星.His first great discovery was made when he recognized a Cepheid variable star.他的首次重大发现产生于他认识了一颗造父变星的时候....
With age increasing, the diopter of these subjects had a tendency of hypermetropia from myopia.随着年龄的增长, 人眼的屈光度有由近视向远视变化的趋势.There is no significant difference of diopter between two groups before LASIK.两组间,术前的屈光度无统计学差异.Ho...
Items: all kinds of top grade and middle rail violins, violas and cellos, prevalent violins and accessories.经营项目: 生产各种型号中、高档小提琴 、 中提琴、大提琴和普及小提琴;及提琴零配件等.He scored one quintet for two violas and the other for two cellos.他为...
Many enjoy the mental stimulation of a challenging job.很多人喜欢富有挑战性的工作所带来的强烈的精神刺激。The playgroup provides plenty of stimulation for the children.幼儿游戏组给孩子很多启发.You don't get any intellectual stimulation in this job.你不能从这...
They discussed the abnegation of God.他们讨论否认上帝.Men with that capacity for self - abnegation do not reach a Presidency.具有那样 自我 克制能力的人根本当不了总统.Only spontaneous love flowing with sincere generosity and self - abnegation can f...