但有些人却苦于经常性反复性的头痛。
仪式也有反复性，尽管其反复的频率不一而足。
And rituals can be repetitive - although the frequency of repetition varies enormously.
最有趣的是，这项研究发现，梦境的普遍性、反复性和规律性并不总是保持一致的。
Most interestingly, the study found that dream prevalence, recurrence and regularity do not always correspond.
来源不明性胃肠出血是指首次上、下消化管内窥镜检查都阴性、原发部位不明的持续或反复性出血。
Obscure gastrointestinal bleeding is defined as bleeding of unknown origin that persists or recurs after a negative initial endoscopic evaluation of both the upper and lower gastrointestinal tracts.
目的研究反复性脑缺血神经元选择性易损性。
Objective To study the selective neuronal vulnerability following repeated cerebral ischemia.
说明了染色体异常是导致反复性流产的原因之一。
Result showed that anomalous chromosome is one cause of recurrent abortion.
咯血的量、出现的时间及反复性与病因有一定关系。
The amount of hemoptysis, time of its appearance and symptom relapse were closely related to the etiology.
矿产资源勘查开采过程具有周期性、反复性和渐进性的特点。
The process of mineral resources exploration and exploitation has periodic, progressive and repeated features.
目的探讨反复性自然流产病人应对方式与心理健康状况的关系。
Objective To explore the relationship between coping style and psychological status of the patients with recurrent spontaneous abortion.
采用大鼠反复性短暂脑缺血再灌注模型，观察丹皮酚的抗脑缺血作用。
Protcective effect of paeonol was observed in the repeated cerebral ischemia-reperfusion model in rats.
结论反复性脑缺血神经元选择性易损性及其机制均有别于单次性脑缺血。
Conclusion These findings suggest that the selective vulnerability and the mechanisms of the neuronal damage after repeated ischemia are other than those after single ischemic insult.
目的：探讨反复性呼吸道感染患儿头发中微量元素含量及机体免疫功能状态。
Objective: to investigate the content of trace element in hair and the condition of immune function in patients with recurrent respiratory infection (RRI).
目的探讨肝素治疗因抗磷脂抗体所致反复性妊娠丢失及对孕妇血液中抗体的影响。
Objective To evaluate the effect of heparin on women with recurrent pregnant loss with positive anti phospholipid antibody and its influence on these antibodies serum level.
你为什么认为AIRE突变的病人会发生反复性的黏液皮层的念珠菌感染(5分)？
Why do you think patients with AIRE mutations develop recurrent mucocutaneous candidiasis (5 points)?
目的：研究MK- 80 1对反复性脑缺血大脑皮层组织病理和超微结构的影响。
Objective: to investigate the effects of MK-801 on cortical histopathology and ultrastructure in repeated cerebral ischemia.
禁毒工作是一个具有长期性、艰巨性、反复性的工作，是关系到国家安危和民族存亡的大事。
Drug-control is an arduous and repeated work in long terms, which is of vital importance to the safety of countries and the life-and-death for the nations.
通过遗传咨询门诊，对反复性流产患者夫妇双方或一方进行了染色体核型分析，共71例，检出平衡易位携带者3例。
The karyotypes cf 71 cases of recurrent abortion, or their couples were examined in genetic definition clinic, 3 cases of anomalous karyotype were observed.
本文对家庭暴力的概念及家庭暴力具有的普遍性、危害性、隐蔽性、反复性、突发性、可预防性特点进行了一定的分析。
This paper defines the concept of family violence, and analyzes its popularity, hazard, potency, hidden-ness, repetition, precipitation and preventability.
我们的主要研究结果是：负反馈机制可以有效地抑制非典型肺炎的蔓延，但在某些情况下可能引起感染人数的反复性振荡。
The main results of our simulation are that the feedback mechanism can effectively slow down the SARS infecting rate, but it may cause sustained oscillations in number of infection cases.
我们的主要研究结果是：负反馈机制可以有效地抑制非典型肺炎的蔓延，但在某些情况下可能引起感染人数的反复性振荡。
The main results of our simulation are that the feedback mechanism can effectively slow down the SARS infecting rate, but it may cause sustained oscillations in number of infection cases.
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