再经过

After another period of time, the innerWill continue to grow out of acne metabolism or after exposure to air oxidation will produce blackhead problems.

再经过一段时间后，内层的粉刺会继续生长往外代谢，在接触空气氧化后还是会产生黑头粉刺的问题。

Chlorophyll of mulberry leaves can be extracted by 95% ethyl alcohol and then sodium copper chlorophyllin is made by chemical progress.

以桑叶为原料，95 %乙醇为溶剂提取叶绿素，再经过皂化、铜代、成盐制成叶绿素铜钠盐，产品质量达到国家GB32 36 - 82标

In this paper,a design method of two dimensional Linear Phase Nearly Perfect Reconstruction filter banks based on a new class of cosine modulation systems is presented,which can be described as follow: firstly,the Parks-McClellan algorithm is adopted for designing the prototype filter,then by employing cosine modulation,a series of analysis and synthesis filters can be obtained,accordingly a one-dimensional LP-NPR filter banks can be constructed;Secondly,cascading two one-dimensional LP-NPR filter banks in the form of tree structure and using the unimodular transformation,a two dimensional nonseparable LP-NPR filter banks can be obtained.

提出了一种基于一类新余弦调制系统的二维线性相位-近似完全重构滤波器组的设计方法，设计过程分为两个步骤：首先采用Parks-McClellan算法来计原型滤波器，再经过余弦调制能到一系列的线性相位分析和综合滤波器，从而可以构造一维LP-NPR滤波器组；然后利用树状结构来结合两个一维LP-NPR滤波器组，并运用单位模变换，可以得到二维不可分离LP-NPR滤波器组。

In China an eight-step approach to the cis-bicyclic amine was adopted, including five-step route to cyclopentane-...

国内工业生产方法是以环己酮为原料经五步反应合成中间体1，2-环戊烷二甲酸，再经过三步反应完成顺式构型的建立和氮杂五元环的合成。

The physical quantity to be measured is transformed into corresponding optical signal by light path. Then the optical signal is transformed into discrete voltage signal by a series of hardware circuit and software processing.

光路将待测物理量转化成相应的光信号，再经过硬件电路和软件的一系列处理转换成离散的电压信号，并在计算机上以图形方式显示结果。

After the product of the disproportionation under vacuum was treated through washing and vacuum filtering, DPO with content over 98% could be obtained.

减压歧化反应的产品再经过洗涤、抽滤等处理，可以得到含量为98%以上的DPO样品。

Thereafter, due to a large number of ancient human fossils found in the material, some people think that the human and ape in the new Middle and Late Miocene Tertiary (180-600 million years ago) started to divide the community a few years Dryopithecus health of various species are the ancestors of monkeys, a species which evolved into the first person Branch representatives - Ramapithecus later evolved from the Ramapithecus dating back 200 million years ago, Australopithecus, and then through the Homo erectus, early Homo sapiens, late Homo sapiens (M. Krume farmer) and evolved into modern man.

此后，由于大量古人类化石材料的发现，部分人认为人和猿是在新第三纪的中新世中晚期（距今180—600万年间）开始分化的，森林古猿里的几个种是各种现生猿的祖先，其中有一个种进化成最早的人科代表——腊玛古猿，以后由腊玛古猿进化成距今200万年前的南方古猿，再经过直立人、早期智人、晚期智人而进化成现代人。

At some point you'll have proved yourself and you will be knighted, and then after some more time, a fief.

当你已经证明自己，你将被封爵，然后再经过多些时间，才有你的第一个领地。

In the presence of NaH and in DMF, the acyclic crown ethers 1a and 1b were synthesized by the reaction of di-or triethyleneglycol ditosylate and o-methoxymethoxybenzyl alcohol, which was obtained from salicylaldehyde via the protection of the hydroxyl group with chloromethyl methyl ether followed by the reduction of the formyl group with NaBH4. The hydrolysis of 1a and 1b with dilute hydrochloric acid provided the diphenolic type acyclic crown ethers 2a and 2b respectively in good yield.

将水杨醛与碱和氯甲基甲基醚反应，再经过NaBH4还原，即制得邻苯甲醇，然后将其在DMF中与NaH和二甘醇二对甲苯磺酸酯反应，得开链冠醚1a和1b.1a和1b经稀酸水解，即脱保护而分别生成新的酚型开链冠醚2a和2b。

The growth dynamic of un-flowering seedlings was similar to those flowering and seeding, but the life history periods between them were different: only those crossing two or enven more winters could the former seedlings bloom and fructify to finish their life history circle.

未开花结实的越年生实生苗的生长节律与当年生实生苗相似，但需要再经过一个生长季节甚至更长的生长发育期才能进行开花结实，完成其生活史周期。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。