形态异常的

For investigation of genetic mechanisms of leaf polarity formation, we screened for Arabidopsis mutants with aber...

通过EMS化学诱变，寻找到一些形态相似，叶发育异常的突变体，遗传实验证明这些突变体可以被分成两类。

Aberrant filtering bleb morphology also may be cystic and avascular as well as prone to spontaneous leakage.

异常的滤泡形态除了有自发泄漏倾向外，也可能会出现囊状及无血管。

Heteromorphism is abnormal tumor differentiation in the form of performance.

异型性是肿瘤异常分化在形态上的表现。

Since the occurrence of deformed spermatids is one of the common abnormalities leading to malfunctional sperm, identification of RIM-BP3 might provide insight into the molecular cue underlying causes of male infertility in humans.

精子细胞形态异常是导致精子功能异常的原因之一，因此，RIM-BP3的发现为研究雄性不育的机制提供了线索。

The purpose of this study was to evaluate whether the morphology of the midfacial complex and mandible differed in normal occlusion and Angle Class II, division 1 malocclusion children, and to localize differences with finite-element method and thin-plate spline analysis.

本研究的目的，在评估混合齿列时期，二级异常咬合儿童与正常咬合儿童间，中脸部复合体和下颚骨的形态是否有所差异。使用传统测颅分析法合并几何形态学分析（有限元素分析法、薄板仿样分析法），对其中形态间的变化及其发生机制将有更深入的认识，并能提供临床医师作为早期诊断和治疗的参考。

The clinical characters of oligodontia concluded from this study are following:(1) There is significant difference that more teeth absent and more existent teeth anomalies in patients of oligodontia/S group than in patients of oligodontia/I group, and the peg-shaped upper lateral incisor is the most frequently affected teeth with shape anomaly.(2) Both of the two groups have no significant differences in number of teeth missing between maxilla and mandible as well as that between left and right side.(3) The distribution of teeth missing is bilateral symmetry in both groups, but the frequency of teeth lost are different: excluding the third molar, in oligodontia/I group, the lower second premolar is the most frequently congenitally missing tooth followed by the upper lateral incisor, while in oligodontia/S group, the most frequently missing teeth are mandibular canine and maxillary lateral incisor. Nevertheless, the first molars are the most stable teeth in both groups.(4) In oligodonita/I group, the mean mesiodistal dimensions of all type of existent teeth are significantly smaller than normal value. It is implied that oligodontia is not an isolated phenomenon, but is related to a complex of other dental changes.

对于口腔多个恒牙先天缺失的临床特点有以下初步结论：(1)综合征型先天缺牙患者较单纯型先天缺牙患者恒牙缺失数目更多，平均分别为23.9个和14.9个，且现存牙齿有更多的形态异常，分别为7／10例（70％）和6／22例（27.3％），其中最常见的是上颌侧切牙畸形；(2)两种类型的多个恒牙先天缺失患者的缺牙数目在上下颌及左右侧之间均无差别；(3)两种类型的多个恒牙先天缺失患者在缺失牙位上均呈对称分布，但在具体牙位上有所差异：不计第三磨牙，单纯型先天缺牙最常缺失的牙位是下颌第二双尖牙、其次为上颌侧切牙；而综合征型先天缺牙最常缺失的牙位是下颌尖牙和上颌侧切牙；无论何种情况，第一磨牙均为牙列中最稳定的牙齿；(4)在单纯型先天缺牙患者中，现存恒牙的牙冠宽度较国人正常值偏小，差异显著，提示牙齿形态与多个牙先天缺失有一定相关性。

The development phase of proembryo was about 30 days, young embryo 40 days and matu...

在形态发育的观察中，发现低温冻害会引起花粉在发育各阶段的形态异常及大量败育。

Cytological observations of the anther development of pms15-16-2-3 mutant and the wild-type plant showed that the mutant middle layer degenerated later, both the tapetal cell morphology and the tetrads were abnormal, which resulted in few fertile pollen grains formed in the anther.

细胞学观察表明，突变体在花药发育的过程中，中层细胞延迟降解，绒毡层细胞形态分化异常，出现异常的四分体，导致最终只能形成少量的花粉。

Part Ⅰ: Brain structural abnormalities in patients with a first episode of major depression — An Optimized Voxel-based morphonmetry MRI study OBJECTIVE: We examined the structural difference in regional gray matter density between unmedicated patients with a first episode of major depression and healthy comparison participants in order to find the base of pathophysiologic mechanism in MD.

第一部分首发重性抑郁症患者脑结构磁共振异常的研究—基于体素的优化形态测量学分析方法目的：探讨首发、未服药重性抑郁症患者全脑灰质密度的异常变化，以揭示抑郁症患者病理生理机制的脑结构基础。

However,the normal controls seldom showed metaphase multipolar mitoses and centrosome amplification,with the average frequencies of（0.8±0.9）%and（1.2±1.4）%separately.

而正常对照组细胞仅偶尔出现异常分裂中期形态及异常的中心体数目，其平均值分别（0.8±0.9）%和（1.2±1.4）%。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。