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性囊
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     Expression of bcl-2 ,C-ras p21 and PCNA in ovarian epithelial cystadenoma
     Bcl-2、C-ras p21和PCNA在卵巢上皮性囊腺肿瘤的表达及意义
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     Expression of C-erbB-2,PCNA and p53 Protein in Ovarian Epithelial Cystadenomatous and Their Clinicopathological Significance
     卵巢上皮性囊腺性肿瘤组织中C-erbB-2、PCNA和p53蛋白的表达及临床病理学意义
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     The Sensitivity, Positive Predictive Value, Positive Likelihood Ratio of hemorrhagic corpora luteum, mature cystic teratomas , endometriomas and small malignant masses were 80.00%, 94.12%, 59.20;
     TVS结合CDE诊断黄体血肿、成熟性囊性畸胎瘤、巧克力囊肿及恶性卵巢小肿块的灵敏度(Se)、阳性预测值(PV_+)、阳性似然比(LR_+)分别为80.00%、94.12%、59.20;
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     Diagnosis and treatment of multilocular cystic nephroma
     多房性囊性肾瘤的诊断与治疗
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     Expressions of Oncogene C-ras p21 and Nuclear Antigen PCNA of Proliferative Cell in Ovarian Epithclial Cystadenoma
     卵巢上皮性囊腺肿瘤C-ras p21和PCNA的表达
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  相似匹配句对
     Cystic Fibrosis
     纤维化
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     Diagnosis and treatment of cystic meningioma
     脑膜瘤的诊治
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  sex vesicle
The view that XY bivalent in pachytene is embedded within the sex vesicle was fully confirmed.
      
The pachytene complement in mice consists of 19 rod-shaped autosomal bivalents and the XY bivalent embedded within the sex vesicle.
      
A correlated light and electron microscopical study has been made on the sex vesicle of human spermatocytes.
      
The human sex vesicle contains no RNA and no ultrastructural granular element.
      
The sex vesicle is formed at zygotene by the two heteropycnotic sex chromosomes that come into end-to-end contact at this stage.
      
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Functional ovarian tumors producing estrogens are associated with menstruel dis- turbances and reappearance of vaginal bleeding after menopause. But menstrual disturbances occasionally may appear in nonfunctional ovarian tumors. This article reports 17 such cases, including 13 mucinous cystadenomas, 3 serous cystadenomas and 1 struma ovarii. In these tumors, the ovarian stromas are cortical, fibroblastic and/or collagenous. These stromal changes, the hyperplastie changes are moderate to marked in over half of...

Functional ovarian tumors producing estrogens are associated with menstruel dis- turbances and reappearance of vaginal bleeding after menopause. But menstrual disturbances occasionally may appear in nonfunctional ovarian tumors. This article reports 17 such cases, including 13 mucinous cystadenomas, 3 serous cystadenomas and 1 struma ovarii. In these tumors, the ovarian stromas are cortical, fibroblastic and/or collagenous. These stromal changes, the hyperplastie changes are moderate to marked in over half of the cases. The author suggests that the hyperestrogenic status may be responsible for the stromal changes. However, this should be tested further by histochemical and tissue-culture methods.

卵巢的功能性肿瘤因瘤细胞能分泌雌激素而致患者月经紊乱或停经后又出血。卵巢非功能性肿瘤也偶见这些症状。本文报告13例粘液性囊腺瘤,3例浆液性囊腺瘤及1例卵巢甲状腺肿,共17例卵巢非功能性肿瘤患者出现上述症状。其肿瘤间质中皆见有卵巢皮质样、纤维母细胞样及胶原化三种成分。其中前两种成分呈中度以上增生者占半数以上。故认为患者过高的雌激素可能来自此两种细胞,需进一步通过组织化学及组织培养以证实。

According to the morphology,number,and arrangment of the granularcells,and the presence or absence of follicular antrums in the follicles.The oo-cytes in the mature ovaries of the two breeds(Northeastern Native and Harbinwhite sows)were divided into five developing stages:Ⅰ,Ⅱ Ⅲ(including Ⅲ_1、Ⅲ_2),Ⅳ,Ⅴ。Electron microscopic findings were shown as follows:A few short microvilli began to emerge on the oolemma of oocytes stage 11.The zone pellueida appeared around oocytes stage 111.There were cortical granules(CGs)in...

According to the morphology,number,and arrangment of the granularcells,and the presence or absence of follicular antrums in the follicles.The oo-cytes in the mature ovaries of the two breeds(Northeastern Native and Harbinwhite sows)were divided into five developing stages:Ⅰ,Ⅱ Ⅲ(including Ⅲ_1、Ⅲ_2),Ⅳ,Ⅴ。Electron microscopic findings were shown as follows:A few short microvilli began to emerge on the oolemma of oocytes stage 11.The zone pellueida appeared around oocytes stage 111.There were cortical granules(CGs)in the oocytes of the two breeds.At first CGs were produced by the Golgi complex(GO)secretive surface nearthe nucleus in stage 11.At this time,CGs assumed the form of concentrated vesic-ular or dark granules in the mutivescular bodies.Thereafter,they migrated gradu-ally into the cortical region together wich GO,Mitochondria(Mi),etc.CGs mostly were ball-shaped and elliptical.They were differentiated into darkgranules and light granules according to their electron density.The diameter and number of CGs varied with size ot cocytes.The signifi-cant linear positive correlation(P<0.01)exsised between the averag numberof CGS and the average diameter of oocytes in various developing stages.while the oocytes were ovulating,the number of CGs reached the maximum.in themThere were not significant differences in genesis,size,morphology,numberand distribution of CGs between the two breeds.There were Annuli lamellae in the oocytoplasm in stage Ⅲ_1.The dominant Golgi complexes were found in the oocytes from stage 1 to Ⅳ.They appeared as the form of clusters of small vesioulae together with an arrayof cisternae.At the stage when the oocytes were synthesizing nutritive materials,there was an increase in the number of Mi,GO and rough endoplasmic reticulum(RER),and always the partial coalescence of Mi and RER,of GO and RERhad been found.This phenomenon probably reflected their functional relation-ships.In stage Ⅴ,GO were almost disappearance,RER were strikingly diminished,Mi changed uniformly small and sphere.But,lipid drops were even larger andmore than those of stage 111 and Ⅵ.Furthermore,the total area of lipid drops in one section was about 2/5 of the area of the whole cytoplasm.It was likelythat the large number of accumalation of the lipid drops was one of the charac-teristics in swine's oocytes.There was a first polar body in the perivitellinespace of this developing stage.A ccording to the morphological findings of submicroscopic level,we conclu-ded that the cytoplasm and oolemma of the oocytes in stage V had matured comple-tely.Noticeably,these differed greatly from the oocytes of rabbits and mice,which need continuous maturation in the oviducts.

本研究根据卵泡内颗粒细胞的形态、数量和卵泡腔的有无,把东北民猪、哈尔滨白猪卵巢内的卵母细胞划分成五个发育阶段:Ⅰ、Ⅱ、Ⅲ(包括Ⅲ_1、Ⅲ_2)、Ⅳ、Ⅴ。电镜观察发现:第Ⅱ阶段卵母细胞质膜开始产生少量、短的微绒毛。继后,微绒毛长大,密度增加。透明带于第Ⅲ阶段的卵母细胞开始形成。两品种猪的卵母细胞中均有皮质颗粒(CGs)存在。最初,CGs 由第Ⅱ阶段卵母细胞近核区的高尔基复合体(Go)分泌面产生。此时,CGs 呈浓缩小泡和多泡小体中暗色颗粒的形式存在。其后,它们和 Go、线粒体(Mi)等逐步迁移到细胞质的皮质区。CGs 大多呈球形。根据它们的电子致密度可分为暗粒和明粒。CGs 的直径和数量随着卵母细胞体积而变化。在各发育阶段的卵母细胞中,CGs 平均数量和卵母细胞平均直径增长之间呈非常显著的强相关(P<0.01)。当卵母细胞将排卵时,CGs 达到最大数量。两品种猪之间,在 CGs 发生、大小、形态、数量和分布上均无明显差异。第Ⅲ_1阶段卵母细胞中有环层板产生。从第Ⅰ到第Ⅳ阶段的卵母细胞中,我们都发现了占优势的 Go,它们由小泡集团和膜性囊组成。当卵母细胞制造营养物质的时候,Mi、Go 和粗面内质网(R...

本研究根据卵泡内颗粒细胞的形态、数量和卵泡腔的有无,把东北民猪、哈尔滨白猪卵巢内的卵母细胞划分成五个发育阶段:Ⅰ、Ⅱ、Ⅲ(包括Ⅲ_1、Ⅲ_2)、Ⅳ、Ⅴ。电镜观察发现:第Ⅱ阶段卵母细胞质膜开始产生少量、短的微绒毛。继后,微绒毛长大,密度增加。透明带于第Ⅲ阶段的卵母细胞开始形成。两品种猪的卵母细胞中均有皮质颗粒(CGs)存在。最初,CGs 由第Ⅱ阶段卵母细胞近核区的高尔基复合体(Go)分泌面产生。此时,CGs 呈浓缩小泡和多泡小体中暗色颗粒的形式存在。其后,它们和 Go、线粒体(Mi)等逐步迁移到细胞质的皮质区。CGs 大多呈球形。根据它们的电子致密度可分为暗粒和明粒。CGs 的直径和数量随着卵母细胞体积而变化。在各发育阶段的卵母细胞中,CGs 平均数量和卵母细胞平均直径增长之间呈非常显著的强相关(P<0.01)。当卵母细胞将排卵时,CGs 达到最大数量。两品种猪之间,在 CGs 发生、大小、形态、数量和分布上均无明显差异。第Ⅲ_1阶段卵母细胞中有环层板产生。从第Ⅰ到第Ⅳ阶段的卵母细胞中,我们都发现了占优势的 Go,它们由小泡集团和膜性囊组成。当卵母细胞制造营养物质的时候,Mi、Go 和粗面内质网(RER)出现一个数量上的增加。并屡见 Mi 和 RER、Go 和 RER 相互连接的情况。这反映了它们的机能关系。第Ⅴ阶段的卵母细胞中,Go 几乎全部消失,RER 显著减少,Mi 一律变圆变小。但是,脂滴比第Ⅲ、Ⅳ阶段卵母细胞中的脂滴更大、更多。此时,脂滴约占胞质的2/5;脂滴的大量积聚是猪卵母细胞的特征之一。在卵周隙中有第一极体。根据超微结构的形态学所见,我们认为第Ⅴ阶段的猪卵母细胞质和质膜已经最终成熟。显然,这与排卵后还需在输卵管内进一步成熟的家兔、小鼠卵母细胞大不相同。

The dendritic spine apparatus of the pyramidal cell in the visual cortex of the rat cerebrum has been observed with the electron microscope after fixation by glutaraldehyde-osmium tetroxide and double staining with uranyl acetate and lead citrate. The present study analyzed the fine structure of the spine apparatus. It was found that the spine apparatus is a prominent character of the structure of the dendritic spine in the cerebral cortex. The spine apparatus of visual cortex consists of a series of sacs or...

The dendritic spine apparatus of the pyramidal cell in the visual cortex of the rat cerebrum has been observed with the electron microscope after fixation by glutaraldehyde-osmium tetroxide and double staining with uranyl acetate and lead citrate. The present study analyzed the fine structure of the spine apparatus. It was found that the spine apparatus is a prominent character of the structure of the dendritic spine in the cerebral cortex. The spine apparatus of visual cortex consists of a series of sacs or channels separated by several bands or granules of osmophilic dense material These special organoids are complicated and polymorphous structure. Usually, the spine apparatus located mainly in the head of the spine, but some were encountered within the stalk of the spine. In the postsynaptic element, some microfilaments connected the spine apparatus and the postsynaptic membrane. Occasionally, some ribosomes occurred near the spine apparatus. As the membrane-bound sac of the spine apparatus is morphologically similar to the smooth endoplasmic reticulum, it was suggested that both organelles are homologous structures. Although there are several types of spine apparatus in the cerebral cortex, the Gray's and channel-like spine apparatuses have never been found in the lower regions of the central nervous system. Thus they might be unique to the cerebral cortex of the mammals and that they are in particular related to the specialized functions of the neocortex was considered.

用电镜对大鼠大脑视区皮质内锥体细胞树突侧棘的棘器作了观察,并分析了其微细结构。棘器是大脑皮质内侧棘结构的一个显著特点,系由被嗜锇性的致密带或颗粒分隔的一些囊或管组成的,它们是复杂多形态的结构。棘器一般位于侧棘小头内,本文也报导了小柄内的棘器。突触后膜和棘器间可见有微丝连接,偶见棘器附近有核糖体。棘器膜性囊或管的形态与滑而内质网相似,说明二者系同源结构。几种形态的棘器中,Gray氏棘器和管形棘器仅见于哺乳动物大脑皮质内,未能在低位中枢神经系统内见到,因而认为棘器可能与脑新皮质的特异性功能有特殊的关系。

 
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