多胎的

There were 36 males and 40 females,with the average age of 47.7 years.36 patients presented with sciatica and perineal numbness,11 patients had painless mass and the other 20 were identified due to other causes.Among 67 benign neurogenic tumors,54 were originated from S1-S3 nerves,3 from S4-S5 nerves and 11 from the presacral space without caudal involvement.Giant cell tumor was found in 60 patients,which included 24 males and 36 females,with an average age of 32 years.Upper sacrum（S1-S2） was involved firstly.There were 56 patients（average,37.7 years） diagnosed as other primary benign bone tumors,which included 24 cases of teratomas,epidermoid cyst or dermoid cyst.Other malignant tumors,including chondrosarcoma （17）,Ewing′s sarcoma/PNET（14）,multiple myeloma（12）,lymphoma（6） and osteosarcoma（6） were found in 64 patients.

其中脊索瘤95例，男62例，女33例，平均年龄55.7岁，骶尾区疼痛是主要症状（82例），半数以上患者伴有坐骨神经痛，肿瘤多先累及低位骶骨（S3~S5）；神经源性肿瘤76例，男36例，女40例，平均年龄47.7岁，神经纤维瘤43例，神经鞘瘤24例，恶性神经鞘瘤9例，主诉多为坐骨神经痛、会阴部麻木（36例）和无痛性包块（11例），20例患者为查体或其他原因检查时发现，67例骶骨良性神经源性肿瘤起源于S3以上神经者54例，起源于S3以下神经者3例，发生于骶前未累及骶管者10例；骨巨细胞瘤60例，男24例，女36例，平均年龄32岁，腰骶尾部不适（37例）、坐骨神经痛（21例）是主要的临床表现，肿瘤多先累及上位骶骨（S1~S2）；骶骨其他原发良性肿瘤及瘤样病变56例，包括畸胎瘤、皮样囊肿、表皮样囊肿共24例；其他原发恶性肿瘤64例，包括软骨肉瘤17例，尤文肉瘤14例，多发性骨髓瘤12例，成骨肉瘤6例等。

Background— Fetuin-A is a multifunctional hepatic secretory protein that inhibits dystrophic vascular and valvular calcification.

背景---胎球蛋白A是具有多功能由肝脏分泌的蛋白质，它抑制了营养不良性血管和心瓣膜钙化的发生，较低的胎球蛋白A血清浓度和肾终末期疾病患者的心瓣膜钙化是相联系的。

DHA+EPA protects the fetation in high iodine group.

结论多不饱和脂肪酸对高碘所致胎胎损害有一定的拮抗作用。

Result: Quadruplet pregnancy was an extremely rare disease, accompanied with multiple complications during the perinatal period. Its major clinical feature was excessly large uterine, the definitive diagnosis of quadruplet pregnancy depended on ultrasonography. With reason able prenatal examination and prevention from the multiple complications during the perinatal period, the quadruplet pregnancy could had a similar outcome as single birth.

结果：四胎妊娠的发生率极低，围产期并发症多，临床表现主要为子宫过度增大，明确诊断主要依靠超声通过合理的产前监测和对围产期并发症的防治，四胎妊娠仍能取得和单胎妊娠一样的良好结局。

The brain tissue of the different fetal age rat could be cultured into neural stem cells with the most number of cells for 12.5 dags embryo, which furthermore differentiated into neurons and glial cells.

胎龄为12.5天胎鼠大脑皮质培养出的神经干细胞数量最多，可分化为神经元、神经胶质细胞及少突胶质细胞。

Different genotypes were determined in Luxi monotocous cows, Luxi twinning cows, Chinese Simmental cows, Angus cows and Simmental×Mongolia cows by restriction fragment length polymorphism. The value of polymorphism information content indicated that this was a moderate polymorphism in Luxi monotocous cows and Luxi twinning cows.

运用PCR-RFLP法验证并分析该位点在鲁西牛双胎群体和单胎群体及中国西门塔尔牛、安格斯牛和西蒙杂交牛单胎群体间的多态性，结果表明，在鲁西牛双胎和单胎群体中分布A、B两个等位基因，处于中度多态。

Ovary superior or semi-inferior, 1-loculed, with 2-9 parietal placentas, rarely incompletely 2-9-celled by placentas protruding deeply into locule; ovules 2 or more on each placenta, orthotropous, anatropous, or hemi-anatropous; styles isomerous with placentas, free or partly to completely united, rarely absent, stigmas small or large, capitate to flattened and branched.

子房上位和半下位，1室，有2-9侧膜胎座，很少不完全的2-9室，胎座凸出深入进子房室；每个胎座内胚珠2或更多，直生，倒生或者半倒生；花柱和胎座同数，离生，或部分到完全合生，很少无花柱，柱头小或者大，头状到扁平或者分枝。

Where other carpels to give a multilocular ovary, the marginal placentae of the carpels may fuse in the center of the ovary,giving axile placentation, as in tulip(Tulipa spp.).

某些心皮形成多室子房，心皮的边缘胎座可能在子房中央融合形成中轴胎座，如在郁金香中。

In part because of absolute increases in multiple gestations and in part because of higher rates of low birth weight among singleton infants conceived with this technology, the authors write.

作者写到：「部分是由於多胎妊娠的绝对增加，部分是由於采用该技术孕育的单胎婴儿中低出生体重的发生率更高。

Han Sheep with small tail and Hu Sheep are the excellent sheep breeds in China with the characteristic of multiple embryos, which are the special resources for sheep genetic breeding.

绵羊多胎品种中的小尾寒羊和湖羊是我国优秀的地方绵羊品种，也是我国独特的绵羊遗传育种资源。

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