单睾丸

Acrylonitrile or methacrylonitrile is hydrolyzed in a suitable aqueous reaction mixture by an enzyme catalyst characterised by a nitrile hydratase and amidase activity of Comamonas testosteroni 5-MGAM-4D, producing the corresponding acid.

在合适的含水反应混合物中通过催化剂使丙烯腈或甲基丙烯腈进行水解生产对应的酸，催化剂的特征在于具有睾丸酮假单胞菌5-MGAM-4D的腈水合酶和酰胺酶活性。

Methods 40 healthy adult Wistar rats were divided randomly into four groups, sham operation group (group A, n=10), torsion/detorsion group (group B, n=10), single astragalus plus detorsion group (group C, n=10), successive astragalus plus detorsion group (group D, n=10). Testicular torsion/detorsion model was established in terms of turner methods.

将40只健康雄性Wistar大鼠分为4组，分别为假手术对照组，睾丸扭转／复位组，睾丸扭转／复位＋单次腹腔内注射黄芪注射液组及扭转／复位＋连续腹腔内注射黄芪注射液组，每组10只。

these results suggest the injury of contralateral testes may occur in early time after unilateral testicular torsion/detorsion, and the profuse tissue no concentration may play a significant role in the contralateral testis.

单侧睾丸扭转后对侧睾丸早期即可出现继发性损伤，过量no在单侧睾丸扭转复位后对侧睾丸早期损伤中起主导作用。

The average age of benign cases was 36 years, and testicular swelling was found in 6 cases, 2 patients presented with testicular swelling and gynecomastia in 2 cases. The average age of malignant cases was 64 years, and all testicular swelling.

良性病例平均年龄为36岁，其中6例表现为单侧睾丸肿大，2例表现为单侧睾丸肿大伴双侧乳腺发育。4例恶性肿瘤病人平均年龄64岁，均表现为单侧睾丸肿大。

A white MS is no more valuable than an oversize, undersize micro-mini or monorchid.

一个白色雪纳瑞并不会比一个体形太大的，或者太小的或者是单睾丸的迷你雪纳瑞具有更大的价值。

Or monorchid.

一个白色雪纳瑞并不会比一个体形太大的，或者太小的或者是单睾丸的迷你雪纳瑞具有更大的价值。

Orchiectomy for testicular torsion showed acute vasculitis consistent with polyarteritis nodosa.

随后患者因睾丸扭转急诊行单侧睾丸切除术，术后病理检查见同结节性多动脉炎病理类型相一致的急性血管炎。

With western blot analysis and DNA polymerase chain reaction-single strand conformation polymorphism assay,protein product of Rb gene and mutation in exon 5～8 of P_(53) gene were examined in 17 cases of human testicular seminoma.

采用Western印迹和DNA聚合酶链反应－单股构造多态性分析法对17例人睾丸精原细胞瘤组织标本的抗癌基因Rb表达的蛋白产物和P_（53）基因外显子5～8的突变进行检测，发现有3例标本的Rb基因表达的蛋白产物缺失，有4例标本的P_（53）基因有点突变，对照的正常人睾丸组织和视网膜组织均呈Rb基因蛋白产物表达阳性，对照的正常人睾丸组织中未发现P_（53）基因突变。

L-NMMA can reduce the damage of contralateral testis of prepubertal rats with unilateral testicular torsion during the early period, and L-NMMA may also have a protective effect on the testicular spermatogenetic function in the later stage.

L-NMMA可以减轻大鼠单侧睾丸扭转后对侧睾丸的早期损害，对晚期对侧睾丸的生精功能具有一定的保护作用。

The testis index, testis volumes were same as the annual changes of testis mass. The curves of annual variation were all unimodality.2 The spermatogenetic cycle of Myospalax cansus comprises seven stages with significant features: Stage I , from February to April, the testis were at the stage of spermatogonia proliferation. In this period, testis index and the number of spermatogonia began to rise. Other spermatogenic cells had not yet formed; Stage II to III, from March to April, primary spermatocyte meiosis period. The testis index was highest in this stage, and spermatogenic cells were in spermatocyte stage, the primary spermatocyte meiosis generated to secondary spermatocyte; Stage IV, from April to May, spermatocytes continued to split, germ cells appeared in seminiferous tubules; Stage V, in May, sperm formation, spermatids of seminiferous tubules were transformed to spermatozoa, a large number of sperms existed in the lumen; Stage VI, spermatozoa emission period, from May to June, testis index were a significant drop and mature spermatozoa excluded gradually; VII, the testicular activity ceased basically from July to September, November to January of the following year, the spermatogenic activity ceased completely. Therefore, Myospalax cansus are animals of seasonal reproduction, spermatogenesis cycle is discontinuous type.

睾丸系数、体积和重量的年周期变化规律一致，变化曲线呈现单峰型。2甘肃鼢鼠雄性生殖腺的年周期活动由7个特征明显的时期构成：Ⅰ期，2～3月份，精原细胞增殖期，睾丸系数开始上升，精原细胞进行有丝分裂，其他生精细胞尚未形成；3～4月份为Ⅱ～Ⅲ期，初级精母细胞成熟分裂期，睾丸系数达到最大，生精细胞大多处于精母细胞阶段，初级精母细胞减数分裂生成次级精母细胞；Ⅳ期，4～5月份精母细胞继续进行分裂，精细胞在生精小管内出现；Ⅴ期，5月份，精子形成期，曲细精管中精细胞变态成精子，在管腔中存在大量的精子；Ⅵ期，精子排放期，5～6月份，睾丸系数显著下降，成熟精子从生精小管上脱离，逐渐排除；Ⅶ期，精原细胞停滞期，7～9月份睾丸生精活动基本停滞，11～翌年1月，生精活动完全停止。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐