圆形物

In late September 1824, people in Orenburg, Russia were puzzled when they heard something clattering on the onion-shaped roof of the Orthodox church.

在1824年九月下旬，在 Orenburg 中的人们，当他们听到了某物吧嗒掉在东正教堂圆形屋顶之上的时候，俄国人困惑了。

In this thesis, we propose a newly developed micromachined biomimetic microphone by utilizing the central gimbals-support circular structure [5-8], and mimicking the structure of the oxalis.

在此篇论文中，我们利用中央平衡环支撑式圆形结构并且模仿酢浆草的结构，提出了一个全新发展的微机械仿生物式麦克风。

A rounded part or protuberance, especially of the body

包：一圆形部分或隆起物，尤指身体上的

The shape factor is less for rounder or streamlined objects than for irregular or sharp-edged structures or elements.

对圆形或流线型的物体来说，形状图子要比不规则的或棱角分明的结构物或部件小得多。

The optimal structures are the ratioof inner and outer tube diameter being 0.71, the ratio of inner and outer tubeheight being 0.40, sparger with 50% porosity, the volume ratio of filler toreaction mass being 4.0%.

确定最佳反应器结构为：内外管高度比h/H=0.40，内外管管径比d/D=0.71，填料体积占反应物系总体积4.0%，开孔率50%的圆形渐缩式喷嘴。

It was shown that, the flow pattern in the EMPT was more complex than that in traditional one, that is, in the column chamber, the short circuit flow from the outlet nozzle of the ladle was depressed by the rotating molten steel, and horizontal recurrent flow appeared in rectangular chamber, which prolonged the average staying time of the molten steel, then reduced the volume fraction of inactive area in EMPT.

结果显示，电磁净化中间包的流场比传统中间包的流场复杂：在圆形腔中，旋转运动抑制了大包水口至矩形腔的短路流，而在矩形腔中形成水平环流，从而延长钢液在中间包的平均停留时间，死区减小，电磁净化中间包的上述流场结构及传输行为对钢液中的非金属夹杂物去除非常有利。

Artefacts found in the 600 x 600 meter (1,800 x 1,800 ft) include metal coins, metallic chisels, terracotta missiles, rouletted and knobbed pottery, stone hammers and bangles.

这次被挖掘的土地的大小为600米×600米（1800英尺×1800英尺），考古学家在其中找到的物品包括金属硬币、金属凿子、赤陶土制成的投掷物、带有孔洞和圆形把手的陶器、石头锤子及手镯等。

Results There were 8 angiomyolipomas, 2 leiomyomas, 2 multilocular cystic nephromas, 1 hemangioma and 1 mesoblastic nephroma. Only multilocular cystic nephroma and leiomyoma have special characteristics that can be determined from RCC.

典型的平滑肌瘤和多囊性肾瘤在CT上有可与肾癌鉴别的特征性表现：平滑肌瘤为规则圆形，边界清楚，密度均匀，CT值略高于肾实质，无钙化，弱强化；多囊性肾瘤为边界清楚的包块，可见边缘锐利含多个分隔的肿块，分隔之间为囊腔，囊内容物的CT值与水相似或稍高，而错构瘤、海绵状血管瘤、慢性肾脓肿、中胚层肾瘤在CT上无法与肾癌鉴别。

The indirect sign included the stercolith in the appendix with sound shadow; periappendicular absence echo or deposit echo when appendicitis complicated with exudation or perforation; mixed swollen echo on the right hypogastric region when abscess formed; dilation of intestine; local ileocecal edema or mesenteric thickening and encysted greater omentum.

横断面呈&靶环征&或圆形回声。2 间接征象：阑尾内粪石并声影；阑尾炎有渗出或穿孔时周围的无回声区或有沉积物回声；脓肿形成时为右下腹混合性肿块回声；肠管扩张；回盲部肠管局限性水肿或肠系膜增厚和大网膜包裹。

Objective To study the pathogenesis and clinical symptoms of patient with central type of interˉvertebral disc protrusion manifested intermittent claudication as the mainly clinical presentation,so as to reach the early diagnosis and treamtmet in time.Methods In58cases,X-ray film,lumbar discography,CT examinations were done to confirm the diagnosis,then total laminectomig was performed to reveal the vertebal body without involving small arˉticular process.Intervertebral tissue was excised via duralotomy approach in2cases in remaining56cases,through right and left longitudinal syndesmotomy to resect the nucleus pulposus of lumber intervertebral disc.Results In58cases treated by operation,the operative findings were in according with the X-ray and CT examinations ofpre-opˉeration.

目的 对呈间歇性跛行主要临床表现的中央型椎间盘突出症患者的发病机制和临床表现进行研究，达到早诊断、早治疗方法对58例患者进行X线拍片，腰椎碘造影，CT扫描检查，根据检查结果确诊后，采用全椎板切除显露椎体，未累及小关节突，2例经硬膜切开入路切除间盘组织，余56例经从双侧用神经剥离子带棉片将硬脊膜带神经根向中线剥拉至显露圆形突出物止，分别从左右纵韧带摘除髓核。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。