In two-line hybrid rice, hybrid seed production often encounters self-or sib-seed con-tamination because of the incomplete male sterility of female line, While in multiplication of male sterile seeds,it has the problem of fertile seed contamination originating from pollination with ex-otic pollen or from mechanically mixed seed.
在二系杂交水稻种于生产中，由于母本雄性不育不彻底，往往造成自交种子污染；在不育系繁种时，由于与外源花粉串粉杂交或机械混杂，因此难以保证不育系纯度。
With the widel application of medical devices that manufactured by utilizing animal tissues in clinical fields, great attention have been given by the authorities to the risk of viruses and transmissible agents originating from animal tissues and the potential risk to the human body.
随着动物源器械日益广泛的应用于临床,动物组织原料病毒和传染因子的携带风险以及对人体的潜在危害已引起各方极大的关注。
A person or an animal that shows no symptoms of a disease but harbors the infectious agent of that disease and is capable of transmitting it to others.
带菌者没有表现出疾病的症状但却携带这种疾病的传染因子并由此能够传播疾病的人或动物
Person who may be infectious because he has recently been near to sb who has a contagious disease
（因接触传染病人）可能受到传染者
Construction Silver Carp (Hypophthalmichthys Molitrix) and Bighead Carp (Aristichthys Nobilis) Genetic Maps and Cloning of Prion Protein Encoding Gene of Bighead Carp;
鲢、鳙鱼遗传连锁图谱构建和鳙鱼蛋白感染因子基因的克隆
Research of Bicistronic DNA Vaccine and Molecular Characteristic of mRNA3 of Avain Infectious Bronchits Isolated in China;
禽传染性支气管炎病毒基因双顺反子DNA疫苗及mRNA3的分子特性研究
imals died in an epidemic
因传染病而成群死掉
Cholera is spread by Contagion.
霍乱因传染而扩大。
a disease of cattle that is transmitted by cattle ticks; similar to Texas fever.
一种由牛虱子传染的疾
yellow-fever mosquitos.
一种传染黄热病的蚊子。
the transmission of disease by mosquitoes
由蚊子引起的疾病传染
This disease is carried by mosquitoes.
这种疾病是蚊子传染的。
The man was found to have an infectious disease, so his house had to be fumigated.
那个男人被发现患有传染病，因此他的房子必须用烟熏来消毒。
In unsuccessful transmission experiments the causative agent could not be passed through bacteria-retaining filters.
在失败的传染实验中，致病因子不能通过细菌滤器。
Genetic polymorphisms of 6 Y-chromosome specific STR loci in southern Han population of China and its application in paternity testing;
6个Y染色体STR基因座遗传多态性及其在亲子鉴定中的应用
Molecular Characterization of Infectious Bronchitis Virus Isolated in Shandong(China) between 2006 and 2008
2006-2008年山东鸡传染性支气管炎病毒分离株S1与N基因的分子特征
Molecular Epidemiology of M and N Genes of Infectious Bronchitis Virus Isolated in Four Provinces of China
四省区鸡传染性支气管炎病毒M、N基因分子流行病学研究
Molecular characterization of matrix glycoprotein gene of infectious bronchitis virus W strain
鸡传染性支气管炎病毒W株膜蛋白基因的分子特征
Prusiner's iconoclastic suggestion that something without any genetic element could cause an infectious illness "evoked a good deal of skepticism", he observes.
普里辛纳注意到，他那反传统的见解，即没有任何遗传因子的物质也能引起传染性疾
Influence of Chicken Infectious Anemia Virus Infection on the Immune System in ChicksⅡ.Dynamic Changes of Activity Induction of Several Cy- tokines In Vitro
鸡传染性贫血病毒感染对雏鸡免疫系统的影响Ⅱ．几种细胞因子体外诱生活性动态变化