老化

In addition, stress accelerative ageing model is recommended to describe power capacitor ageing process.

另外，为描述电容器老化引用了应力加速老化模型。

Moreover, it has been observed that nylon 6/nano-TiO2 composites have excellent photooxidative degradation resistance, as verified by aging characteristics and XPS analysis.

此外，氙灯老化实验和XPS测试结果表明，尼龙6／纳米TiO2复合材料具有良好的耐光氧老化降解能力。

In the corse of chondrocyte's cataplasia and senescence, the factors which controlling cell life cycle and cell growth changes as follow:↑－pRb↑－E2F↓－CyclinD↑－CDK4↓－telemorase↓.

在软骨细胞退变老化过程中，老化相关调控因子出现如下变化：p16↑－pRb↑－E2F↓－CyclinD↑－CDK4↓－端粒酶↓。5。

The chondrocytes of different generation were observed with light-microscope and transmission electron microscope for cellular growth and ultromicrostructure, with the method of MTT assay for grow curve and proliferation, with alcian blue test for GAG of ECM, with immuocytochemistry and RT-PCR (reverse transcript -polymerase chain reaction)for type Ⅱcollagen, with flow cytometry for cell life cycle ,histochemistry for S-A-β-galand so on by which to identify cataplasia and senescence of chondrocytes cultured in vitro.

对软骨细胞退变老化进行观察，采用相差显微镜观察其生长情况，透射电镜观察细胞结构，阿力新蓝染色检测胞外基质硫酸GAG含量和结构，免疫细胞化学法和RT-PCR方法检测Ⅱ型胶原鉴定软骨细胞，以MTT比色法描绘生长曲线、检测生长状态，组化法检测老化相关β-半乳糖苷酶，流式细胞仪分析细胞周期和增殖指数。3。

The third passage chondrocytes were divided into blank group, different desity PAP groups, different desity glucosaminsalfate groups which were passaged to 4th generation and contrast to the 2nd passage group. The chondrocytes of different groups were detected with the method of histochemistry for S-A-β-gal,and with alcian blue test for the content and constructure of GAG of ECM, immuocytochemistry for type Ⅱcollagen and PCNA, MTT assay for proliferation, RT-PCR for type Ⅱcollagen and Aggrecan, flow cytometry for cell life cycle and proliferation index,by which to observe PAP's function regarding to the appearance and functional status in the process of chondrocyte's cataplasia and senescence.

将P3软骨细胞分为空白对照组、鹿茸多肽不同浓度组、硫酸氨基葡萄糖不同浓度组进行传代培养，同时以P2代软骨细胞为对照组，进行组化检测老化相关β-半乳糖苷酶，阿力新蓝染色检测胞外基质硫酸GAG含量和结构，MTT比色检测增殖，免疫细胞化检测PCNA和Ⅱ型胶原，RT-PCR检测Ⅱ型胶原、Aggrecan蛋白，流式细胞仪分析细胞周期和增殖指数等方法，对鹿茸多肽抗软骨细胞退变老化进行分子生物学研究。4。

The 3rdpassage chondrocytes were divided into blank group, different concentration PAP groups,different concentration glucosaminsalfate groups and were sequently passaged to 4thgeneration. The 2nd passage chondrocytes was contrasted as young cells group. Thechondrocytes of different groups were detected with the methods of histochemistry forS-A-β-gal, and with alcian blue test for the content and constructure of GAG of ECM,immuocytochemistry for typeⅡcollagen and PCNA, MTT assay for proliferation, RT-PCRfor typeⅡcollagen and Aggrecan, flow cytometry for cell life cycle and proliferationindex,by which to observe PAP"s function regarding to the appearance and functional status inthe process of chondrocyte"s cataplasia and senescence.

将P3软骨细胞分为空白对照组、鹿茸多肽不同浓度组、硫酸氨基葡萄糖不同浓度组进行传代培养，同时以P2代软骨细胞为对照组，进行组化检测老化相关β-半乳糖苷酶，阿力新蓝染色检测胞外基质硫酸GAG含量和结构，MTT比色检测增殖，免疫细胞化检测PCNA和Ⅱ型胶原，RT-PCR检测Ⅱ型胶原、Aggrecan蛋白，流式细胞仪分析细胞周期和增殖指数等方法，对鹿茸多肽抗软骨细胞退变老化进行分子生物学研究。4。

The results that the chromatin structure in ANF gene region for 0.5 month-old rats are in loose form while it is in close-packed form for 6 month-rats.

本项研究发现并肯定了发育及老化过程中ANF基因表达规律，老化时染色质构象的变化是ANF基因表达衰退的重要原因，发现ANF基因中三个CCGG序列完全甲基化可能是该基因表达"关闭"的原因。

MethodsPhotoaging skin fibroblast models were induced by 8-MOP/UVA. Cordyceps polysaccharides was administrated before 8-MOP/UVA .HE stained,MTT, hydroxyproline, MDA and SOD quantitant were used to test the effects of cordyceps polysaccharides. ResultsCell crimple,condensation of nuclear chromatin in 8-MOP/UVA model group were observed.

方法用8-甲氧补骨脂素联合UVA（8-MOP/UVA）诱导皮肤成纤维细胞光老化，用HE染色、MTT、羟脯氨酸含量、丙二醛含量检测及SOD活力分析等方法观察虫草多糖对成纤维细胞光老化过程中的形态、活力、胶原合成及抗氧化能力的影响。

SEBS has excellent aging resistance and the drop rate of its performance is less than 10% after being aged in the artificial aging accelerator for one week.

SEBS有优异的耐老化性能，在人工加速老化箱中老化一星期其性能的下降率小于10%。

The possibility of surface contamination moving inside silastic is studied via energy spectrum analysis.

进而通过对高、低场强区材质的断面作扫描电镜，对比了材质在电老化、紫外老化因素下表现出的微观结构特征；通过对比伞裙侧表面和上下表面的微观结构，揭示了电老化和电烧蚀的发生规律；通过能谱分析，探索了表面积污向材质内部迁移的可能性。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。