查询词典 age limit

While age-related muscle atrophy in humans and rodents is well characterized (Grounds, 2002; Welle, 2002; Doherty, 2003; Kamel, 2003; Lynch et al., 2007; Smythe et al., 2008) and satellite cells are known to become mitotically quiescent with age (Schultz et al., 1978; Schultz and Lipton, 1982), age-related changes in activation by stretch or NO were not previously described.

而与年龄有关的肌肉萎缩人类和啮齿动物的良好特征（场地，2002；电波， 2002年，多尔蒂，2003年；卡迈，2003年；证券等。，2007；斯迈思等报。，2008）和卫星细胞已知成为子宫平滑肌静态与年龄（舒尔茨等。，1978年，舒尔茨和Lipton，1982），年龄相关的激活变动伸展或NO以前未描述。

The age structure of a population is the number of individuals in each age class expressed as a ratio, and is usually displayed nor contracting nor contracting will have a stationary age distribution.

年龄和时期结构种群的年龄结构是每一年龄阶段个体数目的比率，通常以年龄金字塔图来表示。

Our project is based on Cenozoic volcanic rocks and deep seated xenoliths in it to reconstruct the source composition and ctructure. We did field investigation, collection of samples, determination of age and composition characteristics of selected samples. The new achievements are following. 1 recognized a potassic metasomatic source of the Cenozoic volcanic rocks through an integrated research of volcanic rocks and their sources. 2 analysis of TM images suggests the Tuoyun basin is a basin with a volcano group instead of a simple volcano-tectonic basin. We found several volcanic craters and cone, and detected three such craters. 3 systematic reseach of volcanic sections and collection of samples both of volcanic rocks and xenoliths, the later includes peridotite, granulite, gneiss and variety of megacrysts. This is propitious to our further research at this rigion. We would like to point that we collected some peridotite large than 20cm in diameter. It could used to variety of analysis and end the history without mantle chemistry records in the region. 4 we got a U-Pb SHRIMP age of 3.87 Ma for the Kangxiwa basalt.It is the youngest record of U-Pb SHRIMP age in China and provide a chronology restriction for last uplifting of Tibet plateau. 5 the investigation of alkali syenite-synogranite in Taxkogan suggests that the origin of Parmir syntex is related to the Cenozoic magmatism.

本项目立足于从火山岩属性和深源捕掳体反演源区成分与结构两个途径，利用火山岩综合研究成果对地幔源区进行了初步反演，提出源区经受过强烈钾质交代的观点；对重点工作区TM图像进行了初步解译，新发现若干了火山口，并对其中三个火山口作了实地查验，为进一步全面深入开展该区的火山地质学及相关科学问题打下了良好基础，认为托云盆地是一个火山群，而不是一个单一的火山构造盆地；系统测制了火山岩剖面，新采集了一批重要的火山岩和深源岩石捕虏体样品，为下一步工作打下基础，特别是采集到了直径打20cm的幔源橄榄岩包体，可用于各种测试，将可以结束西部造山带没有地幔岩化学分析结果的历史；对康西瓦玄武岩进行了测年分析，取得了我国目前最年轻的锆石U-Pb SHRIMP年龄，对青藏高原挽近地质时期的隆升提供了年代学约束；对帕米尔东缘塔什库尔干碱性岩体的动力学意义进行了探讨，提出青藏高原西部构造结的形成与岩浆活动有关的观点。

Sage Vyasa is credited with compilation of Puranas from age Yuga to age, and for the current age, he has been identified and named Krishna Dvaipayana, the son of sage Parashara.

圣者毗耶娑在一个又一个构成历史循环的时代都编写宇宙古史，在当前的时期，他已经被指定为圣人帕拉萨拉的儿子——奎斯那达瓦帕瓦那，并且被看作与之相同。

The age structure of natural clonal population of Zoysia japonlca is studied by generational and morphological methods. The results show that if the relationship between age and tiller? s morphology has been found, the morphological method is better because it can show the seasonal change of age structure.

采用世代、形态2种方法对野生结缕草种群的年龄结构进行了研究，发现如果在获得关于分蘖形态与年龄相关的较为准确资料的基础之上，用形态方法划分结缕草无性系年龄结构更能反映出种群年龄构成的季节性动态。

This paper reports the results of highly precise zircon SHRIMP U-Pb dating of quartz albitite in the volcanic-sedimentary series of the Tuolugou cobalt deposit, Golmud, Qinghai. Analyses of eight spots presented 206Pb/238U ages of 455 to 483Ma with a weighted mean age of 468±9Ma, which represents the timing of submarine volcanic exhalation in this area. Therefore, the age of the host rocks of the Tuolugou ore district is redefined as Ordovician, which implies that regionally the main part of the Naij Tal Group should be Early Paleozoic in age.

青海格尔木驼路沟矿区赋矿火山－沉积岩系中的石英钠长石岩样品锆石SHRIMP U-Pb精细测年结果表明，该岩石具有一组8个测点构成的455~483Ma的206Pb/238U年龄数据，加权平均年龄为468Ma±9Ma，应代表本区海底火山喷流作用的时间，因此重新厘定了矿区内含矿岩系的时代为奥陶纪，同时，这一年龄指示区域上纳赤台群主体的时代应为早古生代。

Results show that Pb enrichment factors varied from 1.0～1.8 in the cultural layers, and were not quite high. However, with the history going on from the Dawenkou Culture to the Longshan Culture, the Pb enrichment factor displayed an obvious rising trend, which indicated that the Pb in the cultural layers was probably associated with the development of metallurgic activities in the middle stage of the primitive society. From 5 050 cal a BP to 4 000 cal a BP, China underwent Stone Age, Chalcolithic Age and Bronze Age in sequence. Pb dust in the atmosphere increased with intensifying utilization of copper resources, which was probably the main cause of the rising enrichment factor in the cultural layers.

但是随着时间的推移，从大汶口文化到龙山文化，Pb的富集系数有明显逐步上升的趋势，表明遗址剖面中的Pb很可能与原始社会中期发展起来的冶金活动有关。5 050～4 000 cal a BP间，中国先后经历了石器时代、铜石并用时代，到最后进入青铜时代，这个过程中铜资源利用越来越多导致产生的大气粉尘铅越来越多，很可能是YC1剖面中Pb富集系数逐步增长的主要原因。

In this paper, age structure, the relationship between the age and the stem diameter of Cinnamomum burmannii populaion were studiedl survival curve and age structure pictures were given.

研究了阴香种群的年龄结构及其年龄与胸径的关系，绘制了阴香种群的存活曲线和年龄结构图。

Demonstrated by five medicament to 1st age nymphae and prosopon\'s toxicity comparison result that,five medicament obviously are higher than 2~age nymphaes and the prosopon to 1~age nymphae\'s toxicity,explained the Dactylopius confusus along with stadium enlargement,it bears the medicine degree also gradually to enhance, therefore,should prevent and control as soon as possible.

由五种药剂对胭脂虫一龄若虫和成虫的毒力比较结果显示，五种药剂对一龄若虫的毒力均明显高于二龄若虫和成虫，说明胭脂虫随着龄期的增大，其耐药程度也逐步提高，因此，应尽早防治。

The population density was different at various altitudes, and among them, the biggest one was the population C. The life tables showed that the death rates at age class Ⅱ,Ⅲ,Ⅳ were higher, so the death rates decreased with the diameters class increasing, after age class Ⅳ or Ⅴ, however, the death rates increased again. The expected life was longer before class Ⅳ, and decreased gradually with the age increasing. The survival curves of different populations was close to Deevey Ⅲ type. The dynamics of C.

不同海拔的种群密度存在差异，其中C种群密度最大；静态生命表显示，种群在Ⅰ、Ⅱ径级时死亡率较高，随着年龄增加，死亡率逐渐降低，但到了Ⅳ、Ⅴ径级，由于生理衰老死亡率又上升；种群期望寿命在Ⅱ、Ⅲ、Ⅳ径级较高，随着年龄增加，期望寿命逐渐下降；不同海拔的米槠种群的存活曲线均接近于Deevey Ⅲ型。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。