Friedrich Kekule discovers the unique ring like structure of the molecule benzene right after he wakes up from a day-dream about snakes chasing their own tails and forming rings.
弗里德里希·凯库勒发现分子苯的结构想一个环状的客观事实，正是醒于当天的一个白日梦后知道的，在梦里他梦见一群蛇都在追逐着各自的尾巴，于是形成了好多环形。
With this distinctive central star-forming ring, and the addition of numerous bluish clusters of hot, young stars dotted through its spiral arms, NGC 1097 makes a stunning visual object.
有着与众不同的中心恒星环，旋臂上还点缀着大量炽热的年轻恒星组成的蓝巨星簇，NGC 1097就成为绝佳的观测目标。
All machines exchange information using the same port number, thereby forming a ring for communication.
所有的计算机使用相同的端口号来交换信息，因此形成了一个通信环。
So Farihi thinks that the trace elements must have come from another source: remnants of rocky planets, forming a ring of debris that slowly rains down on the white dwarf.
因此Farihi认为痕量元素肯定来自另一来源：岩石行星的残骸形成的碎屑环，慢慢地向白矮星掉落。
"The ring itself is a fascinating object worthy of study because it is forming stars at a very high rate," Kartik Sheth, an astronomer at NASA's Spitzer Science Center, said in a press release.
“星环本身就让人兴奋，是很值得研究的事物，因为它的星体分布的密度非常高。”美国宇航局的斯皮策科学中心天文学家KartikSheth在记者会上说。
Slender, tilted trunk with ring marks, tree top the FuYe born great pinnate, forming a beautiful crown.
树干细长，倾斜，具环痕，树顶著生巨大的羽状复叶，形成优美的树冠。
When the main tree dies, the sprouts are then free to grow as full trees, forming a "fairy ring" of trees around the initial tree.
当主要的树死亡，树芽即自由地成长成大树，在原来的树周围环绕形成「仙女环」。
Objective to search the forming cause and the correlation between the clinical phenotype and chromosome band by the cytogenetic analysis on a case of ring chromosome 21 syndrome.
目的通过对1例21号环状染色体综合征患者的细胞遗传学分析，探讨21号环状染色体的形成原因，临床表型与染色体区带的关系。
Propulsion jets fed with oxygen are surrounded by a plurality of oxygen-fed heating jets forming a ring.
与氧气供给推进飞机被包围在多数氧馈加热射流形成一个环。
The forming technology and the forming die of each working process for the closing ring were analyzed.
分析了卡圈成形工艺及各单工序成形模具特点。
With the FEM simulation, the strain and stress of each node under different deformation stage are analyzed and the common forming law of this ring shell container is obtained.
采用有限元数值模拟对环壳零件成形过程中不同压下量下毛坯各节点的应力应变分布及变化规律进行了分析，获得了环壳零件冲压过程的成形规律。
The process of cold rolling forming for outer ring of single freewheel of bicycle and the structure of roller and jig, and the parameters for rolling machine have been introduced.
介绍了自行车单级飞轮飞壳冷滚轧成形工艺过程以及轧辊的结构、夹具形式和轧机参数。
It has been recommended a technology and die of bending ring with analysis of its forming process, using in that of bending ring in progressive forming die.
介绍一种卷圆工艺和模具，并对模具弯曲成形过程进行了分析，指出该方法可以用于级进模上成形。
This impact would have sprayed huge quantities of material into space, forming a ring around Earth similar to, but much thicker than, those that now adorn Saturn.
这次碰撞已将大量的物质散发到了太空，从而形成了环绕地球的光环，类似于那些现在装饰土星的光环，但是要厚得多。
According to the design inner ring, forming a stamping of stainless steel.
根据内圈进行设计，对不锈钢板一次成形冲压。
With the mass production of rubber lock ring, the demands of rubber forming automatic trimmer is growing rapidly.
随着橡胶密封圈的大批量生产，对橡胶成形件自动修剪机的需求也跟着扩大。
The present invention relates to ring part forging and rolling formation technology, and is especially forging and rolling process of forming flange for wind motor tower.
本发明涉及环形件锻辗成形工艺技术，具体地说是一种风力发电塔筒法兰锻辗成形方法。
This paper analyzes the cause of formation of the slag-ring in the crystallizer and discusses the influencing factor of forming the slag-ring and effects on the functional performance of the powder.
通过对连铸结晶器保护渣渣圈形成原因的剖析，结合生产实际分析并讨论了影响渣圈形成的因素及对保护渣使用性能的影响。
In this regard, the ring clamp includes a band forming a first retention means on an exterior surface and a second retention means formed on an interior surface.
就此而言，环形夹具包括带，该带形成了位于外表面处的第一固定装置和形成于内表面的第二固定装置。
Good ring sealing and detergency reduces the volume of the deposit forming materials that enter the crankcase, there-by extending the useful life of the crankcase oil.
良好的密封环和清净减少了存款形成材料，进入曲轴箱，因而延长了使用寿命曲轴箱油。
The taper ring's irregular section shape decide the unequal forming of the ring metal when rolling ring, which is the main cause of irregular wide spread and draw concave on the symmetry face of ring.
锥形套圈由于它截面形状的不规则性决定了辗扩过程金属变形的不均匀性，这是导致不规则宽展、拉凹的主要原因。
In view of the continuous treating equipment of the bearing ring in forming and reshaping, has designed the hydraulic pressure servo automatic control System based on PLC and the traces screen.
针对轴承套圈辗扩和整径连续加工设备，设计了基于PLC和触摸屏的液压伺服自动控制系统。
Ring rolling is a high efficient rolling method for manufacturing seamless rings, which is a progressive partial plastic forming technology.
环件轧制是无缝环件生产的一种高效的先进加工方法。
A practical structure of slide plate type of bending die has been presented for forming of ring parts with description of the operating principle of the die.
给出了弯制环形零件的滑板式弯曲模实用结构，论述了模具工作原理。
H atom of phenolic hydroxyl in the ligand was attractive to N atom forming intramolecular hydrogen bond, and a new six-membered ring was formed by the hydrogen bond connection.
配体中酚羟基上的H原子与N原子相吸形成了分子内氢键，并以氢键连接构成了一个新六元环。
The rims of the bottom plate are folded upwards, forming a ring-like area, whereupon the tubular supporting component is fixed by adhesive technology.
将底层板周边向上弯曲折边，将蜂窝型管状支撑件采用胶粘工艺固定在底层板的折边区域内。
The utility model relates to a hydraulic shaping mechanism device, in particular to a steel ring wheel felloe roll forming machine.
本实用新型涉及一种液压成型机械设备，具体为一种钢圈轮辋滚 型机。
Reasons for pelletizing kiln's ring-forming and its solution;
研究了武钢乌龙泉矿石灰回转窑结圈形成的原因和机理。
Reasons for pelletizing kiln's ring-forming and its solution;
研究了武钢乌龙泉矿石灰回转窑结圈形成的原因和机理。
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