查询词典 fourteen

It was his job to repair bicycles and at that time he used to work fourteen hours aday.

修理自行车就是他的话，而且经常是一天要干14个小时。

It was his job to repair bicycles and at that time he used to work fourteen hours aday.

修理自行车就是他的话，而且常常是一天要干14个小时。

It was his job to repair bicycles and at that time he used to work fourteen hours aday.

在退休前，弗兰克是一家非常大的商业公司的经理，但他小时候却在一家小铺里做工。

Amniocentesis is a test performed during the first fourteen to twenty weeks of fetal development to know if the fetus has Down syndrome.

羊膜穿刺术是一个测试期间执行的第一14至20周的胎儿发育知道，如果胎儿有唐氏综合症。

With fourteen years of experience in hospitality industry, Ananta brings with

阳先生，印度尼西亚人，拥有14年丰富的酒店管理经

Fourteen of the 539 alive siblings had known aneurysmal disease and 12 of those had had surgical repair.

对74例同代亲属筛选发现4例患有轻度主动脉扩张，6例患有中到重度主动脉扩张。

Fourteen days later, the ectopic firing originating in the L5 nere root was antidromically recorded from the distal stump of the seered sural nere.

另外10只大鼠作为假手术组不插入硅片。14天后，从已离断的腓肠神经远侧残端逆行记录起自L5神经根的异位发作。

The ISSR markers were fitted to a 3:1 ratio of simplex and duplex segregation for the parental alleles, as the sweet potato was expected to be autohexaploid. Fourteen and nine quantitative trait loci linked to specific ISSR markers were detected for traits in (NH×TN27) and (TN27×NH), respectively. Twenty-two of these QTL-mapped markers were unique to the specific traits, and two were linked to two traits in each linkage map. These markers appear to be applicable to crop improvement.

ISSR标识因子符合六倍体亲本对偶基因simplex与duplex的3：1分离比。14与9个与专一性ISSR标识因子连锁之数量性状基因座，分别检测NH×TN27与TN27×NH之性状，其中22个数量性状基因座图绘之标志因子，对於特殊性状而言具有特殊性；每个连锁图谱中，有两个QTL图绘之标志因子与两个性状连锁，这些标志因子应可应用於作物改良。

Tyree, Scott Porter as Randy, Luke Benward as Alan during fourteen, Keith Robinson as Captain Stone, David Andrews ..

泰瑞，斯科特的兰迪，卢克Benward波特在14的艾伦，基思罗宾逊斯通上尉大卫安德鲁斯。。。

This thesis includes five parts as follows.1. The backgrounds and some relative concepts of this work are briefly introduced. The photochemistry of benzamides and compounds with thiourea functional group is also concisely reviewed.2. Total of fourteen benzamides with different substituted groups have been synthesized and structurally characterized. Better photoreaction time for that kind of compounds at given concentrations is confirmed by tracking its'UV spectrum and GC chromatogram. A representative dibenzophenone photoproduct has been determined by X-ray crystallography. The mechanisms of photoreaction of benzamide have been proposed.3. Total of seven N-chloro(phenylmethylenebenzenamines with different substituted groups and sixty-one thiourea derivatives have been synthesized and structurally characterized.

论文的主要内容如下：1、简要介绍本论文工作的研究背景，并对苯甲酰胺和具有硫脲官能团类化合物的光化学研究进展进行简要的总结。2、合成与表征了14个具有不同取代基的苯甲酰胺类化合物，利用紫外光谱和气相色谱确定了此类化合物较佳光照时间，测定了一个具有代表性光解产物的单晶结构，提出了苯甲酰胺类化合物的光反应机理。3、合成与表征了7个带有不同取代基的氯代苯甲酰亚胺中间体及61个硫脲衍生物，测定了两个具有代表性化合物的单晶结构。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。