Methods 12 guinea pigs of 20 months with 3 cm×3 cm hair sheared from their backs were divided into control group and experimental group. Rhodosin and deer serum preparation was besmeared on the skin of guinea pigs in experimental group, and cosmetic matrix was besmeared on the skin of animals in control group for 60 d. The distribution of type Ⅲ collagen was observed with Sirius red staining and HE staining. The fission index of the cells of stratum basale, the thickness proportion of stratum corneum to epidermis, the volume density of the collagen fibers and small blood vessel in dermis, the number of fibroblasts in aging skin were meassured with technique of sterology.

背部被剪去3 cm×3 cm毛的12只20月齡豚鼠被隨機均分為給藥組和對照組中文字幕一级黄片，給藥組涂抹紅鹿制劑爱爱潮喷小视频免费播放，對照組涂抹化妝品基質(zhì)，連續(xù)涂抹60 d免费看黄se视频网站；應用天狼猩紅A片一区二区在线播放、HE染色和體視學技術分別觀察和測定老化皮膚中Ⅲ型膠原的分布、表皮基底層細胞的分裂指數(shù)伊人狼人在线观看、角質(zhì)層同表皮厚度的比例超碰人人操人人干人人、真皮膠原纖維和微血管的體密度和成纖維細胞的數(shù)目。

Refractive error and axial length are two main factors that offect the severity of maculopathy. Besides, the histopathogenesis of macular area showed obliteration of choriocapillary and aging factor was suggested to involve in those small vessel obstruction.

近視度數(shù)和眼軸長是影響黃斑部病變嚴重性最主要的兩項因素老版A片免费毛片视频观看，另外操女毛片，由黃斑部的組織病理學可看出脤絡膜血管的阻塞，而年齡因素被認為是造成小血管阻的主因日韩A片一区二区视频免费看。

The major aging problems in a PWR plant and their assessment technologies were summarized as the radiation embrittlement of reactor pressure vessel materials,thermal aging of cast stainless steel,stress corrosion cracking of steam generator tubing and metal fatigue in primary circuit of a PWR plant.

主要的老化機理有反應堆壓力容器的輻照脆化日本三级视频网站、鑄造不銹鋼的熱老化、蒸汽發(fā)生器傳熱管的應力腐蝕開裂和金屬疲勞这里久久精彩视频。