肉眼

Looks by far, sees only these grotesque planetoids, some elephant potato, some elephant duck egg, but also some simply indescribable, in which biggest diameter almost has 890 kilometers, but the smallest diameter on several centimeters sizes, is also similar with the small bird's egg, in vast outer space naked eye nearly blind, obviously between these planetoids has the huge difference; Luckily this circles the planetoid which the sun moves, besides appearance irregular, knows one's place extremely, moreover the ingredient quite is unitary, majority all is the lithical meteor, they then receive the outside space powerful disturbance, or suffers other photostar hit in the situation, only then has the possibility the star to cause the damage to peripheral other solar system in.

远远望去，只见这些奇形怪状的小行星，有的像土豆，有的像鸭蛋，还有的简直无法形容，其中最大的直径差不多有八九十千米，而最小的直径也就几厘米大小，跟小鸟蛋差不多，在浩瀚的太空中肉眼几乎看不到，可见这些小行星之间存在着巨大的差异；幸好这一圈绕太阳运行的小行星，除了模样参差不齐之外，还是非常安分守己的，而且成分比较单一，大多数都是石质陨星，它们只有受到外界空间强有力的干扰，或遭受其他星体撞击的情况下，才有可能对周边的其它太阳系内星球造成伤害。

The small rat pulmonary tissue surface ofⅠgroup can see sporadic petechia of different degree; pulmonary alveolus cavity can see sporadic erythrocyte under the microscope.

组及Ⅳ组的小鼠肺组织表面肉眼未见异常，显微镜下见肺泡壁毛细血管扩张呈不同程度的轻度充血。

It is 128 light years from Earth, and is just visible to the naked eye in the constellation of Pegasus.

它距地球128光年，在飞马座中刚好能被肉眼可见。b， c和d标记的三个小红点是系外行星。

But Orion's stars and nebulas don't look quite as colorful to the eye as they do in this lovely camera image, taken early last month at the Black Forest Star Party from Cherry Springs State Park in Pennsylvania, USA.

但是，猎户座中的恒星和星云肉眼看上去并不像这张可爱的照片中那样多彩。这张照片是上个月在美国宾夕法尼亚的欢乐泉州立公园的黑森林星空营地上拍摄的。

Histologically, the seminiferous tubules contained numerous Sertoli cells and more Sertoli-spermatozoa complexes, accompanied by the depletion of Leydig cells with deeply stained nuclei. Mature spermatozoa were stored up in the epididymis, but only a few in the efferent ducts. In the second place was testicular atrophy（32/120; 26.7%）. The seminiferous tubules showed moderate to severe inactivity of spermiogenesis with evidence of only spermatogonia, spermatocytes and Sertoli cells. The Leydig cells were obviously decreased in numbers associated with decrease of lipid droplets in their cytoplasms. Testicular hypoplasia was the third disorders（22/120; 18.3%）. Only a few spermatogonia and Sertoli cells appeared without any spermiogenesis. The associated changes was decreased in Leydig cells and fibrous hyperplasia in the interstitium.Epididymal stones were sometimes found（12/120; 10%）. Grossly, yellowish-white nodules with various sizes and firm in consistency were observed in the epididymis and the front efferent ducts. Microscopically, the epididymal ducts were dilated with voluminous spermatozoa storage, even showed calcification in severe cases. The deposited calcium salts were stained positively by Von Kossa and Alizarin red methods.Amyloidosis was also detected in 10 roosters（8.3%）. Eosinophilic, homogeneous, amyloid-like substances were deposited mainly in the testicular interstitium and the periphery of blood vessels. These substances showed positive reaction by Congo red staining. Five roosters（4.2%）had Marek's lesions in the testis, epididymis and peripheral nerves with infiltration of pleomorphic lymphocytes. Only one case showed epithelial necrosis of seminiferous tubules accompanied by fibrous proliferation in the interstitium.

结果发现，在总共搜集的120个病例中，其中因年老所导致的产精力不佳为最多，占38例（31.7%），於镜下可见大量精虫黏附於Sertoli cell的表面，并可见Sertoli cell数量明显增多而Leydig cell明显减少，且其细胞核呈现浓染的现象，而在其副睪中仍可见到成熟精虫蓄留於管腔中，但在其输精管内却只有少量精虫存在；其次为睪丸萎缩，占32例（26.7%），镜下可见中度至重度无造精作用，其生精小管中只见到精母细胞、精原细胞及Sertoli cell存在，但Leydig cell数量明显减少且其细胞质内的脂质也明显减少；睪丸发育不全，占22例（18.3%），於生精小管内只见到精母细胞及少量Sertoli cell存在，不见造精细胞分化，於生精小管间质可见Leydig cell减少并伴随结缔组织增生；副睪结石，占12例（10%），肉眼下可在副睪及输精管前段见到黄白色大小不一的结节，触感坚硬，於镜下可见副睪管扩张并有大量成熟精虫蓄积，严重时可见钙化现象，以Von Kossa及茜素红染色均呈阳性反应；类淀粉沉著症，占10例（8.3%），镜下在睪丸间质及血管周围可见粉红均质样的物质沉积，以刚果红染色成阳性反应；马立克病，占5例（4.2%），镜下可在睪丸、副睪实质及周边神经内均可见到嗜碱性大小不一的淋巴样细胞浸润；睪丸坏死，占1例（0.8%），镜下可见生精小管上皮细胞坏死脱落及间质结缔组织增生。

The rabbit osteoarthritis model were duplicated by Hulth's technique. The pathologyical changes of each group was observed with naked eyes before taking the thighbone department carilage of pulley block and the platform place of shine bone carilage, then under the light microcope and the transmission electron microcope respectively, after treating with Semer Strychni (high、middle and low dose) for two months.

按Hulth法造兔膝骨关节炎模型，用马钱子高、中、低剂量进行灌胃治疗，连续2月后取材，进行肉眼大体观察后，取股骨滑车部软骨及胫骨平台处软骨，分别于HE染色后光镜下观察和铀-铅双重染色透射电镜下观察各组的病理变化。

If you have reasonably sharp or well-corrected vision, the Moon shows much more detail to the naked eye than any planet will in a telescope!

如果你有锐利的视力，月亮在肉眼中所展现出的细节元比行星在望远镜中所展现的细节要多得多！

Violet is a ray invisible to human eyes.in recent twenty to thirty years,the newly-appeared violet technology has come into use in m,anufacture field,which gives rise to a brandnew technology-ir techinique.it is widely used in monitoring、iareology、induxtry、anriculture、military etc.

哪位大侠帮我个忙翻译一下吧，小弟感激不尽红外线是一种人的肉眼看不见的光线，最近二三十年来，初露头角的红外技术开始应用到生产上，并形成了一门崭新的技术――红外技术。

If you have difficulty discerning star colors with the unaided eye, try looking at these stars with binoculars.

如果你难于用肉眼觉察到星体颜色的话，那就试试用望远镜观测吧。

If you have difficulty discerning star colors with the unaided eye, try looking at these stars with binoculars.

如果你很难用肉眼识别星光的颜色，试着用双筒望远镜去看吧。

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。