发育异常

This results seemingly indicate tnat the morphogenic potential of calli and 〓h〓 fo〓mation of abnormal shoots may be related to the degrees of the aber〓ation of chrome〓ome numbers.

这表明分化能力与染色体数的变异程度有关，另外芽中染色体数异常细胞的存在也许是一些芽发育成畸形苗的一个重要原因。

Other midline cystic abnormalities may be associated with more complex malformations, such as agenesis of the corpus callosum with an interhemispheric cyst.

其他的中线部囊性异常可以与更为复杂的畸形有关，如伴有大脑半球之间囊肿的胼胝体发育不全。

Tooth agenesis also named teeth number deficiency. It happens in tooth forming process or earlier period of tooth germ development.

先天缺牙又称牙齿数目不足，是在牙胚形成过程中或牙胚发育的早期，即牙蕾形成期的异常。

RESULTS: Thirty-two cases were anencephalia, 31 hydrocephalus, 4 hydroancncephalus, 11 neningocele or encephalomeningocele, 25 spinal meningocele with myeloschisis, 12 Dandy-Walker deformity, 11 schizencephaly of forebrain and 22 choroid plexus cyst among the 148 fetuses. There were different expressions in various CNS deformities, which were correlated with abnormal development of embryo.

结果：148例中枢神经系统畸形胎儿中，无脑儿32例，脑积水3l例，积水性无脑4例，脑膜或脑脑膜膨出11例，脊柱裂脊膜膨出者25例，Dandy-Walker畸形12例，前脑无裂畸形11例，脉络丛囊22例，不同类型的中枢神经系统畸形有不同声像图表现，并与其胚胎发育过程异常相关。

Dimensiona ultrasonography data of 29 cases fetal anomaly between 24 and 40 weeks' gestation from Jan 2003 to Dec 2006. Results Among them, there were 11 cases of cheilognathus,7 cases of anencephalus, 4 cases of anomaly of extremities, 3 cases of omphalocele, 3 cases of lymphocyst at the neck and 1 case of amniotic band syndrome. The anomaly features are consistent with those of the born fetuses. Conclusion The three??

大部分解剖结构明显异常的畸形一般通过二维实时超声在22周左右即可做出诊断［1］，但胎儿体表结构有较复杂的曲面改变，二维超声可能漏诊、误诊胎儿体表畸形。20世纪80年代末应用于临床的三维超声成像，是检测胎儿发育状况的有效方法，大大提高了产前诊断的准确率，尤其在检测胎儿畸形方面具有独特优势［2］。

Moreover,20 to 35% of the 2n pollens induced byColchicine developed anomalously,which also affected the effects of triploid breeding.

此外，秋水仙诱导产生的2n花粉中，还有20~35%发育表现异常，也会对三倍体得率产生较大的影响。

Methods: We retrospectiely analyzed twenty-four hips in twenty patients who underwent a Bernese periacetabular osteotomy, which was done with a proximal femoral algus-producing osteotomy in thirteen hips, for the treatment of acetabular dysplasia associated with proximal femoral structural abnormalities.

我们回顾性分析20位患者中的24例髋关节，他们都进行过Bernese periacetabular截骨术，对于髋臼发育不良合并股骨近段的结构异常分别在13例髋关节完成了股骨近段外翻截骨成型术。

In some tetrads, the four nuclei were fused to form onelarge cell with increased chromosome number.

这两种小孢子发育的异常只发生在两个植株的部分四分体中，甚至于同一个四分体的个别细胞中。

Head-to cry as a result of chromosomal abnormalities, metabolic diseases, intrauterine infection, caused by factors such as intrauterine malnutrition, fetal pregnancy in 5 months, there has been slow brain development, and head circumference at birth is slightly smaller than the normal newborn, Before the chimney, or close to the closure of small, aging face and normal bone development on both sides of the frontal and temporal bone upward, flat occipital bone, the head of the Department appears to be even smaller than the head tip, it is also known as the cusp deformity.

小头啼形可因染色体异常、代谢性疾病、宫内感染、宫内营养不良等因素引起，胎儿在妊娠5个月时，脑发育已出现迟缓，出生时头围比正常新生儿略小，前囱小或接近关闭，随年龄增长面骨发育正常而额骨及两侧颞骨向上倾斜，枕骨平坦，头颅部显得更小，头顶较尖，故又称尖头畸形。

The measured porosity data and the observations of thin sections and blue epoxy resin-impregnated thin sections show that the diagenesis in the Qingshui sag can be divided into two stages and five substages. There exist three abnormally high porosity zones vertically in the Cenozoic reservoirs in the Qingshui sag, Liaohe Depression, whose genesis is related to the eluviation of precipitation and the dissolution of organic acid.

根据岩心实测孔隙度、薄片观察、铸体薄片和扫描电镜等实际资料，将辽河盆地西部凹陷清水洼陷新生界成岩作用划分为早成岩阶段和中成岩阶段2个阶段，其中包括5个亚期，指出该洼陷新生界纵向上发育3个异常高孔带，这种异常高空带的形成与大气降水淋滤作用和有机酸对储层的溶蚀作用有关。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。