有变化的

Based on a series of analysis for the relevant data during the period of 1950~1989, the relationship between the ozone layer variation/ solar activity and the periodically prevalent features of two kinds of human infectious diseases in China, the epidemic cerebrospinal meningitis and human plagueepisodes, is presented and analyzed for the first time in this paper.

通过对1950~1989年间一系列有关资料进行分析，首次研究和报道了臭氧层变化、太阳活动与流行性脑脊髓膜炎及鼠疫传染病发病率流行周期特征之间的关系。结果表明，从较长时段看，臭氧层变化、太阳活动与ECM、HP年发病率间存在着较为密切的相关关系；从较短时段看，发病率的季节变化与某些气象因子的变化有一定的关系。此外，本文还提出了一个解释这两类疾病周期流行机制的简单模型

A chemical change is one in which the structure of particles is changed and new substance is formed.

化学变化是其内有粒子结构变化和有新的物质生成的一种变化。

Results: the pH was slightly decreased during the autoclaving, but there was no turbimetric change and diametric change of the NP.

结果 浊度没有明显的变化，pH值在经过高温高压处理后有轻微的降低，粒径变化没有变化。

Ethan: Well, I guess I would say that there is both the potential and the real change.

伊桑：嗯，我想我会说既有潜在的变化，也有真实的变化。

Regarding the speed along with the displacement even change's uniform non-uniform linear motion, its acceleration should define like this: At the unit displacement the speed change (the physics significance is: The speed along with the displacement change "the speed"), like this has:, the acceleration unit should be , Expression speed change which causes in proportion to as a result ,of the speed action of force.if the final velocity is 0, acts according to , namely .

对于速度随位移均匀变化的匀变速直-运动，它的加速度应该这样定义：在-位位移上速度的变化（物理意义是：-速度随位移变化的"快慢"），这样-有：，加速度的单位应该是，表示由于正比于速度的力作用而引起-速度的变化，其中。如果末速度为0，则根据，即。

The change of the rural governance in the part of the State's viewpoint, the change of economic and political institution in rural area , the adjustment of law relation among familial members , and the evolvement of the social structure all have impacts on the effectiveness of family support for the elderly and oldster's welfare.

本文以治理和善治为分析框架，在实证研究的基础上，通过对传统时期、集体化时期、后集体时期的乡村治理与老人福利变迁的历史考察和后集体时期不同区域类型的乡村治理与老人福利的差异比较，得出如下结论：(1)不同时期老人福利状况不同，并不是家庭养老模式发生了变化，而是家庭养老的制度基础发生了变化，其关键因素是支持农村社区组织控制社区经济和约束社区成员的国家意识形态、经济体制、政治制度、法律文化等方面发生了变化；(2)中国发展是不均衡的，后集体时期，我国治理农村的制度框架基本相同，都是乡政村治、分户经营，但不同的地区的老人福利也有很大的差异，其主要原因是不同区域类型的村庄有不同的社会结构，其老人的社会地位和不孝行为所受村庄公共舆论约束力不同；不同区域的乡村组织状况不同，其乡村干部保障老人福利的意愿和力度不同；(3)在现有的乡村治理模式中，选举老人特别是在村庄定居的退休干部担任村组干部，发展自治性的老年协会和开展经常性的、群体性的老年文体娱乐活动，可以提高老人福利、改善乡村治理。

Wear degree decreases, and the wear particle distribution curves become protrusive and precipitous gradually in the initial stage.

通过分析铜合金销与碳钢盘在干摩擦条件下相互对磨所产生的磨粒群和销试样磨损量，发现磨粒的累积分布和微分分布特性随磨损时间的变化而变化：在磨损开始阶段，磨损程度逐渐减小，磨粒群分布曲线由平缓变得逐渐凸、陡；达到磨损平衡状态后，磨损率达到最小，磨粒群微分布曲线的幅值达到最大，横向宽度达到最小；随着销与盘间互适性变弱，磨损程度增大，磨粒分布曲线变得越来越平缓，横向宽度逐渐增大；磨粒分布曲线随磨损时间的变化规律与磨损率随磨损时间的变化规律有明显的对应关系，可为科学诊断和预测摩擦学系统状态提供有用信息。

The pollution is there, the transformation is just unimagineable, everytime he goes back there are always changes, there are poor parts even in big cities but local people don't seem to have "poor living standard" as you mentioned, he even had a chance to visit an Apple factory in Shenzhen and he was quite amazed because what he expected before the visit was something like a little confined room with little lighting, shabbily dressed workers, messy place, machines with electrical wires sticking out , but instead the workers wore full protective gears in a spacy rooms, everything looks pretty much in order.

污染是有的，而变化之大难以想象，每次他去那里总看到有变化，即使在大城市也有穷的部分，但当地居民并没有你提到的"穷困的生活水平"，他甚至有机会访问在深圳的苹果工厂，他感到非常惊讶，因为去之前他以为那里会是几乎没有照明的小房间，衣衫褴褛的工人，乱遭遭的环境，电线露出来的机器，然而却是身穿全面防护装备的工人在宽敞的室内工作，一切看起来相当有秩序。

The results show that there are obvious daily variation of concentrations of O〓、SO〓、SO〓、NO〓. The daily variation characteristic are unlikeness in different season.

结果表明，臭氧，硫酸盐，二氧化硫，二氧化氮等浓度分布有明显的日变化，日变化特征在不同季节有较大的差异。

For the variation of short period of astronomical factors, whether for local time or local sidereal time and lunar phase there is the phenomenon of occurrence of concentrating a interval time for the earthquakes. For the short variation of earth rotation this phenomenon is clear; either the earthquakes occur in most fast or in lowst of earth rotation.

对于天文因素的短周期变化，无论是对于地方时，地方恒星时与月相，都有集中发生在某一段时间的现象；对于地球自转的短周期变化更是比较明显，要么发生在其变化最快时期，要么发生在其变化的最慢时期。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。