Five pairs of carbazole derivative enantiomers were resoluted with a cellulose tris ( 3, 5 dimethyphenylcarbamate ) chiral column. 用纤维素-三 ( 3, 5-二甲基苯基氨基甲酸酯 ) 手性固定相拆分了5种咔唑羧酸衍生物对映异构体.
He dressed well and had impeccable manners.他衣冠楚楚，待人接物无可挑剔。He has an impeccable sense of timing.他有着无可挑剔的节奏感。She had an impeccable aristocratic pedigree.她有纯正的贵族血统。...
Book online the cheapest hotels in inverness - low prices and high discounts.网上预定在因弗内斯最便宜的酒店 - 价格优惠折扣多多.Inverness, however, rose to the occasion in the second half, producing some of the best football they have played fo...
He lay in his bunk under a mound of blankest.他躺在铺上,身上盖着一大堆毯子.a small tree on a grassy mound翠的山岗上的一棵小树There is a mound of papers on my desk.在我的办公桌上有一大堆文件。Barrow a large mound of earth or stones placed a burial site.冢,古坟:在...
A recursive prediction error algorithm which converges fast is applied to tra.采用了收敛速度较快的递推预报误差算法训练神经网络.ACM on the subject of transport! Main uses recursive algorithm! Reference value!这是一道ACM的关于交通运输的题目! 主要用到了递归算法! 有参考价值!A...
服用避孕药是最有效的避孕方法。The pill is the most efficient method of birth control.法律允许医生给16岁以下未成年人开避孕药。The law allows doctors to prescribe contraception to the under 16s.她吃口服避孕药已有3年。She had been on the pill for three years....
The most damaging thing the West could do is to starve Russia of new foreign capital.西方能够祭出的最阴险一招就是不让俄罗斯得到新的外资。They decided to starve the enemy out.他们决定使敌人受饿而出来.You have built up a huge property empire by buying from wre...
Eve, squinting at the clock, saw it was just on 7 a.m.伊夫眯着眼瞥了一下钟，看到差不多是早上7点钟。" More company, " he said, squinting in the sun." 那边来人了, " 他在阳光中眨巴着眼睛说.She was squinting against the glare of the sun.她眯眼看耀眼的阳光.He raised himse...