查询词典 have on

Generally, most of the follicles undergo atresia during their development in mammals, and only a few grow to maturation and ovulation. For many years, the mechanisms of follicular atresia have been one of the foci of study. Recently, with the development in studies on cell apoptosis, it has been proved that follicular atresia is a process of cell apoptosis. However, the endocrinological and molecular evens underlying follicular development and atresia and granulosa cell apoptosis in the goat has not been studied.

中文题名山羊卵泡发育、闭锁及其调控机理的研究副题名外文题名 Studies on follicular development and atresia and their regulatory mechanism in goat 论文作者于元松导师谭景和教授学科专业基础兽医学研究领域\研究方向动物胚胎学与胚胎生物工程学位级别博士学位授予单位东北农业大学学位授予日期2002 论文页码总数71页关键词山羊卵泡发育馆藏号BSLW /2003 /S827 /3 哺乳动物卵泡在发育过程中绝大多数闭锁退化，只有少数卵泡发育成熟至排卵。

Have on network fractionize market without core advantage, the seek to live on path that is website future development.

在网络细分市场上有无核心优势，将是网站未来发展的求生之道。

In recent years,microfluidic chip-based microanalytical systems have emerged as amain area of development in the field of micro total analysis systemsor Labchips,the ultimate objective of which is to integrate all main analytical functions,including sample introduction,pretreatment,reaction,separation and detection operations on asingle chip.

微流控芯片分析是微全分析系统(Miniaturized TotalAnalysis Systems，μTAS)或芯片实验室(Lab-on-a-chip)领域中的重要组成部分，其终极目标是在芯片上实现分析实验室的所有操作，包括取样、试样引渗入渗出、前处理、反应、分离和检测等。

Writing what Judith Fetterley and Marjorie Pryse have called "language on the border land"(192), or what I am calling in this essay the linguistic bicultural, Sui Sin Far, after years of struggle, discovers in the structures of English itself how to represent the Chinese experience in America.

使用费特丽与卜莱斯所谓的「边界语言」(&language on the border land&)或是我在本文中所谓的「语言双文化」，水仙花在经过多年挣扎后，在英文本身的结构里发现如何再现在美国的中国人经验。

Elevated levels of phosphatase and tensin homolog deleted on chromosometen have been reported in mammary gland tumors in humans.

有关酪氨酸磷酸酶基因(Phosphatase and tensin homolog deleted on chromosometen，PTEN)在乳腺肿瘤中的检测在人医早有报道。

The phrase 'to take it on the chin' means to accept bad news without bitterness or upset, but when you are an overweight manager you may have to modify the xpression.

短语&to take it on the chin&意为平静地接受坏消息，不过从身体超重的经理口中说出，这句话就得改一改了

Chicken feed of model 661 is regarded as raw material of pellet feed, the influence that experimental factors including modulation-character temperature, modulation-character moisture, grease-additive quantity, and comminuting granularity have on making pellet quality, productivity, and electricity consumption. UG and ANSYS are regarded as simulating circumstance in finite element analysis, for problem on service life of the machine, evaluation index that average stress of a series of parameterized loop die is regarded as service life of hoop standard granulator is achieved by dynamic, static, and thermal structure coupling analysis for key part: loop die of the machine. For every influencing factor the experimental arrangement of array and combination is made by adopting optimizing idea and method of experimental design, the aim of quantification analysis is strived to arrive.

在试验设计中，采用正交试验的方法，以611型鸡饲料作为颗粒饲料的原料，分析混合饲料的调质温度、调质水分、油脂添加量、粉碎粒度等试验因素对制粒质量、生产率、电耗的影响；有限元分析中以UG、ANSYS作为仿真环境，针对制粒机使用寿命的问题，通过对环模制粒机中的关键零件环模进行动力、静力、热结构耦合分析，获得一系列参数化后的环模的平均应力作为环模使用寿命的评价指标；以实验设计的优化思想和有限元分析方法对各个影响因素作了排列组合式的实验安排，力求达到量化分析的目的。

On the basis of the studied shaping laws, the effects, which the sizes of the cathode surfaces in the EC perforation and cutting have on the machining rate and electrolyzing current, are analyzed in detail.

针对水平井系统的结构特点，对电化学射孔器和切割工具的结构分别进行了设计，并且根据所建的数模，着重分析和讨论了射孔和切割两种加工阴极的型面大小对加工电流和加工速度两方面的影响。

The SwanValley is very much in Shirley's heart, she enthuses,"people don't realize the gem we have on our doorstep the restaurants are on a par with the best in Perth and the people here are so friendly."

雪莉对天鹅河谷爱之甚深，她激动地说：&人们没有认识到我们在我们的门前所拥有的珍宝，我们的餐馆是珀斯一流的，这里的人们非常友好。&

The Swan Valley is very much in Shirley's heart, she enthuses,"people don't realize the gem we have on our doorstep the restaurants are on a par with the best in Perth and the people here are so friendly."

雪莉对天鹅河谷爱之甚深，她激动地说：&人们没有认识到我们在我们的门前所拥有的珍宝，我们的餐馆是珀斯一流的，这里的人们非常友好。&

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。