定义了变换近环,然后证明了任意一个有单位元的近环与它的变换近环同构;任意一个无零因子近环与它的变换近环同。
The commutation near ring defined, it is proved that the near ring of an arbitrary near ring with its unit dimension is isomorphous with its commutation near ring.
两个物体间距离越近,两者间的相互引力越大;但引力也作用于其自身,所以,在极小距离时开始反馈环。
The closer two objects are to each other, the stronger the gravitational attraction between them; but gravity also ACTS on itself, and as a result, at very small distances a feedback loop starts.
面纱星云也被称为天鹅座环,现在的视角跨度近3度,即大约6倍满月的直径。
Also known as the Cygnus Loop, the Veil Nebula now spans nearly 3 degrees or about 6 times the diameter of the full Moon.
方法利用体外培养的单层近融合期人RPE细胞,采用棉签和角膜移植用环钻做圆形细胞刮伤区,建立体外RPE细胞损伤模型。
Methods Cultured monolayer-confluent human RPE cells were scraped with a trephine and a cotton stick, and set up the injured model of RPE cells with round scraped area.
如今,双环汽车2008年销售量目标有近40%没有完成,公司正着手裁员,担心自己可能难以撑下去。
Now, after falling nearly 40% short of its unit-sales target for 2008, the company is cutting workers and worried that it might not survive.
模拟结果与实际生产情况相符,在近齿根处容易出现环向裂纹。
The numerical results of cracks in loop accord well with the practical ones.
在优化条件下制得的催化剂用于环己醇脱氢,环己酮产品收率达85%,选择性近100%。
The results show that, at the optimized conditions of catalyst preparation and reaction, the yield of cyclohexanone can be reached to 85% and the selectivity is nearly 100%.
箭头所指的看上去像新形成的环形山明显要亮的多,因此在克莱芒·蒂娜环月轨道探测器所拍摄的蓝光和近红外合成照片中就会显得更蓝。
This fresh-looking lunar crater (arrowed) appears significantly brighter, and thus inherently bluer, in a Mosaic of blue-light and near-infrared images from the Clementine spacecraft.
发电机:这台90吨重的发电机,通过旋转产生电流的环型磁铁直径近20英尺。
Generator: The 90-ton generator consists of a nearly 20-foot ring of magnets that spins to produce current.
本文综述了近五年双环戊二烯聚合材料进展。
Recent five-year development of polymer materials made from dicyclopentadiene is reviewed in the article.
近岸泥质区含量高于远岸,表明距污染源区的远、近是制约多环芳烃含量高低的重要因素。
The concentration of PAHs in the coastal mud area is higher than that of the offshore suggesting that the distance from their sources is the important factors effecting the concentrations .
近一百年来兰杜特环被眼科医生视为用于评价视敏度[6]。
Landolt rings have been used by ophthalmologists to evaluate visual acuity for nearly a hundred years [6].
等离子体片中的粒子被加热和加速后,注入近地空间,产生环电流和极区亚暴。
The particles are heated and accelerated in the plasma sheet, and then injected into the near earth space, and produce the ring current and auroral substorm.
等离子体片中的粒子被加热和加速后,注入近地空间,产生环电流和极区亚暴。
The particles are heated and accelerated in the plasma sheet, and then injected into the near earth space, and produce the ring current and auroral substorm.
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