无特征的

Hirayama disease should be considered for young patient,especially male patient,with asymmetrical amyasthenia and amyotrophy in the hand and forearm.Hirayama disease can be diagnosed if MR abnormalities of the lower cervical dural sac and spinal cord are seen in a fully flexed position.

当遇到青少年出现手及前臂不对称的肌无力和萎缩而无感觉障碍时，应首先考虑有平山病的可能，可进一步行屈颈MR检查，出现下颈髓及其硬膜囊的特征性表现可确诊。

An infectious viral disease occurring in dogs, characterized by loss of appetite, a catarrhal discharge from the eyes and nose, vomiting, fever, lethargy, partial paralysis caused by destruction of myelinated nerve tissue, and sometimes death.

犬热病发生在狗身上的一种传染性病毒引起的疾病，主要特征是：无食物欲，眼鼻处有黏液，呕吐，发烧，昏睡，由于有髓鞘的神经组织受到损害而部分麻痹，有时会导致死亡

The typical manifestations of PHC were nodular,irregular and heterogenous enhanced regions in lesion,tumorous vessels could be seen in the arterial phase,the hyperdense regions in the arterial phases were changed to hpodense quickly in the portal phase;The characteristic findings of HCH were well-defined intense mural nodular enhancement in the arterial phase,and centripetally oriented enlargement of this nodular in the portal phase,the density of the nodular in the arterial phase were similar to that of aorta or hepatic arteries.

原发肝癌的典型表现是动脉期病灶内结节状、片状强化，并可见肿瘤血管影，强化部分在静脉期迅速呈低密度影；肝血管瘤的特征性表现为动脉期病灶边缘结节状强化，密度类似于主动脉或肝动脉，静脉期强化结节逐渐向病灶中央扩展；肝转移癌的主要表现为动、静脉期病灶边缘环状强化，中央部分无明显强化，静脉期还可见到"牛眼征"。

It could accelerate the production of ascomata and shorten the maturing time when cellulose added, without conspicuous affect on the structures of ascospores.

实验表明，生长过程中加入纤维素能提高毛壳菌子囊果的产果量并缩短子囊果的成熟所需时间，但对子囊孢子形态特征无明显影响。

The strip-like exine ornamentaton and the irregularly thin-horizontal grain on the strip-like sculptures are the common features of the pollen morphology....

花粉的大小和形状，尤其是极面观特征，在供试种之间有不同程度的差异。2亚属之间无明显界限。

As a state of pacific society, Confucian believed, the society of ruling without intervention must possess three characteristics: enough foods, no wars and honesties prevail.

作为一种天下大治的社会状态，孔子认为，无为而治的社会必须具有三个特征，即人民足食、天下无兵和社会诚信。

Facial recognition systems match key features on the holder's face and work best when the face has a neutral expression with the mouth closed.

面部识别系统会将受检者的面部关键特征与照片进行比对，而只有在照片上的人物紧闭双唇面无表情时，仪器才能更加准确地工作。

The variations of helium isotopic ratios can be observed in these xenoliths andxenocrysts from different area, or even from same area, indicating that the xenocrysts didntdirectly crystallize from basaltic magma, and basaltic magma is not directly related to thesemantle lherzolites xenoliths.

提出幔源包体和高压巨晶的氦同位素组成均反映了其地幔源区的特征，与寄主玄武岩无必然成因联系。

Objective:To study the relationships between the expression of thymidine phosphorylase,the density of microvesselsof the tumor,the clinical and pathological features and tumor-free survival rate in endometrial carcinoma.

目的：探讨胸腺嘧啶核苷磷酸化酶与子宫内膜癌的临床病理特征、无瘤生存率、微血管密度的关系。

The channel currents appear quantal in nature, transiting in a seemingly random manner between the"open"and the "closed", and have the characteristic of"all"or"none".

单通道电流信号具有&定量&特性，表现出&全有&和&全无&的特征，为一个个电流幅值高度恒定，持续时间宽度随机变化的矩形波，类似于随机电报信号。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。