大多数病例是散发性的，主要是由于环境因素。
The majority of cases are sporadic and due mainly to environmental factors.
一本古书散发出来的熟悉的霉味源于纸张或其它如装订线等材料发出的数百种不同的挥发性有机化合物。
An old book's familiar musty smell is due to hundreds of different volatile organic compounds gassing out from the paper and other materials, such as the binding.
不仅具备不散发甲醛、苯、氨气、VOC（挥发性有机化合物）等有害气体的优点，而且具有吸附有害气体的功能。
Not only have the advantages of sending no harmful gases of formaldehyde, benzene, ammonia and TVOC (volatile organic compounds) out, also with the function of absorbing diversified pernicious gases.
“森林浴”的内容主要是在森林里放松、休闲，同时呼吸树木散发出的挥发性物质，这些物质能够帮助减轻压力和放松心情。
A forest bathing trip involves visiting a forest for relaxation and recreation while breathing in volatile substances derived from trees, which can lower stress and make people feel at ease.
结果45株散发性戊型肝炎病毒(HEV)中，41株(91%)与缅甸株(B)属同一个基因型，与典型中国株hev核苷酸序列的同源性均在98%以上。
Results 41 of 45 isolates (91%) Shared the same genotype with HEV Burma strain (B), with nucleotide identities higher than 98% with the representative HEV Chinese strain.
结果：散发性霍乱以无毒株为主，质粒及肠毒素基因的携带率极低，但耐药性有所增加。
Results: The sporadic outbreak of vibrio cholera has some characters: including non toxic strain infection, low detection rate of plasmid and ct gene and increase of drug resistance.
针对影响污染物散发及分布特点，给出了室内挥发性有机化合物的具体控制方法，如源头控制、通风及室内空气净化等。
This paper brings forward the indoor VOCs concentration control means, such as source controlling, ventilation and indoor air purifying based on the trait of VOCs emitting and distributing.
结论：BRCA1蛋白表达降低在散发性卵巢癌的发病过程中可能具有重要作用。
Conclusion: the reduction of BRCA1 expression may play an important role in the carcinogenesis of sporadic ovarian cancer.
目的：探讨散发性卵巢癌组织中BR CA1蛋白的表达及其意义。
Objective: To investigate the expression of BRCA1 protein in sporadic ovarian cancer and its significance.
目的：观察脑电图对儿童散发性脑炎的早期临床诊断及预后的价值。
Objective: To study the value of EEG in early clinic diagnosis and prognosis of sporadic encephalitis in children.
结果表明，细菌及真菌性脑膜炎患者的CSF乳酸浓度显著高于非细菌感染的所谓“散发性脑炎”患者及对照组。
It was demonstrated that the levels of CSF lactate in bacterial-fungal meningitis group were much higher than that in "sporadic encephalitis" group and control group.
目的探讨泛素羧基末端水解酶l1 (uch - L1)基因的S18Y多态性在散发性阿尔茨海默病(AD)发病机制中的作用。
Objectives: To explore the role of S18Y polymorphism of Ubiquitin Carboxy-terminal Hydrolase-L1 (UCH-L1) gene in the pathogenesis of sporadic Alzhermer's disease (AD).
检测BRCA1表达及DNA含量在散发性乳腺癌的早期诊断、判断生物学行为、预测预后中有重要意义。
Detecting BRCA1 expression and DNA content have important significance in earlier diagnosis, judgement of biological behavior, prediction prognosis of breast carcinoma.
评价应用临床信息，病理学特点和微卫星分析来鉴别具有突变子表型的散发性结直肠癌患者的可行性。
To assess the feasibility of using clinical informations, pathological features, immunohistochemistry and microsatellite analysis to identify patients with the mutator phenotype.
用法：所有的基本护理精油都是有很强的挥发性的，会在空气中蒸发，也会散发出香气。
Directions: All essential oils are highly volatile, and evaporate on exposure to air, giving off their aroma.
家族性MG患者的VDR基因多态性与散发性MG患者不同。
There are some difference of VDR gene frequencies between familial MG and sporadic MG patients.
目的研究中国湖北汉族人群内皮素受体- B (EDNRB)基因的多态性与散发性先天性巨结肠症发病的关系。
Objective To analyze the relationship between polymorphisms of EDNRB gene and Hubei provincial patients of Han ethnicity with sporadic Hirschsprung disease (sHD).
结论PINK1基因R 492x无义突变不大可能是中国散发性帕金森病患者的突变热点。
Conclusion R492X nonsense mutation of PINK1 gene was rare in Chinese sporadic patients with PD.
方法回顾性分析26例甲状腺髓样癌的临床资料，其中散发性24例，家族性2例。
Methods 26 cases of MTC underwent surgical treatment were retrospectively reviewed, including sporadic in 24 cases and familiar in 2 cases.
结论广州地区存在NLV引起的散发和暴发性非菌性胃肠炎，当地儿童在婴幼儿期即获得NLV感染，感染率有随年龄增加而升高的趋势。
Conclusions Sporadic and fulminant NLV infections are present in Guangzhou. The children have the infection in their infancy, and the infection rate increases sharply with age.
结果：MIN在具有家族背景大肠癌中的表达明显高于无家族史的散发性大肠癌（P＜ 0．05）。
Results: The incidence of MIN positive was higher in CRC Wirth familial predisposition than sporadic CRC ( P< 0.05).
为了探索散发性戊型肝炎抗体的临床意义。采用ELISA方法检测。
To explore the clinical significance of antibodies in sporadic Hepatitis E virus infected patients, a ELISA protocol was used in this study.
方法：总结了家族性预激综合征30例，散发性预激综合征363例，对两组患者的临床及电生理特点进行了比较。
Methods: 30 cases of familial preexcitation syndrome and 363 cases of sporadic patients were compared in clinical and electrophysiologic characteristics.
这两类表现与散发性脑炎的病因及病理分类基本相对应。
These two types of the MR images manifestations correspond in the main with the etiologic and pathologic classifications of the sporadic cerebritis.
这种结构倾向于朝向该鼻凸吸取挥发性空气处理化学品，对该区域进行加热可引起有效且可再装填的散发。
This structure tends to wick the volatile air treatment chemical towards the nose, and heating that area can lead to efficient, and rechargeable, dispensing.
结论：散发性副神经节瘤患者中存在SDHB基因突变，可能与副神经节瘤的发生有关。
CONCLUSIONS: The mutation of SDHB exists in sporadic paragangliomas patients and it might play a significant role in paragangliomas tumorigenesis.
结论国人原发性散发性肾透明细胞癌中存在VHL基因的突变。
Conclusion The VHL gene may frequently mutate in Chinese patients with primary sporadic renal clear cell carcinoma.
由于满山桉树时时散发出浓郁的芬芳，在阳光的折射下，这种挥发性蒸气使蓝山笼罩在蓝色的氲氤中。
Because full hill ash sends out constantly, give full-bodied fragrance, below the reflection of sunshine, this kind of volatile steam makes la Shan envelops the Yun Yin in blue in.
由于满山桉树时时散发出浓郁的芬芳，在阳光的折射下，这种挥发性蒸气使蓝山笼罩在蓝色的氲氤中。
Because full hill ash sends out constantly, give full-bodied fragrance, below the reflection of sunshine, this kind of volatile steam makes la Shan envelops the Yun Yin in blue in.
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