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A single strand lives for up to seven years. 一根头发的寿命可长达7年。
She wore a single strand of pearls around her neck. 她脖子上戴着单串珍珠。
A single strand of matching thread is recommended for hand stitching. 手缝线迹推荐使用一根单股相配的线。
Forensic scientists can determine a persons sex ,and race by examining a single strand of hair. 法医科学家能通过检验一缕头发判断一个人的性别、年龄和种族。
To wind together(two or more threads, for example) so as to produce a single strand. 扭成一束捻合（例如两根或更多的线）成为一股
Forensic scientists can determine a persons sex, and race by examining a single strand of hair. 法医科学家能通过检验一缕头发判断一个人的性别、龄和种族。
To wind together (two or more threads, for example) so as to produce a single strand. 扭成一束:捻合(例如两根或更多的线)成为一股。
The solidifying streams are gathered into a single strand and wound onto a spool. 这些液流凝固后被集为一股,绕上一个线轴。
Step 2: The intervening single strand DNA of 28 nts is then removed after DNA helicase unwinds the DNA. 步骤1：核苷酸切除修复复合体识别损伤，然后在3’端距离损伤位点5个核苷酸处形成一个切口；在5’端距离损伤位点23个核苷酸处形成另一个切口；
A single strand of untwisted synthetic fiber, such as nylon, used especially for fishing line. 单丝一根未捻的合成纤维，如尼龙，尤指用于钓鱼线
The flesh of the banana was plump and pure. No imperfections - not even a single strand of that chalky inner peel was left on the inside of the fruit. 香蕉肉饱满又干净,没有一点不完美,甚至皮里面的白色果膜也没有留在香蕉肉上。
The ability of trichloroethylene(TCE) to induce single strand breaks in peripheral lymphocytes DNA of male mice in vivo was evaluated using single cell gel electrophoresis(SCGE). 为研究三氯乙烯（TCE）的遗传毒性，应用单细胞凝胶电泳法（SCGE）测定了TCE诱导人和小鼠外周血有核细胞DNA链断裂的能力。
A study on DNA fingerprints of Erhualian and Large Yorkshire pigs was carried out using bacteriophage M13mp18 single strand DNA probe. 用噬菌体M13mp18单链DNA作探针，对二花脸和大约克夏猪进行了DNA指纹的研究。
Abnormal single strand bands were found in the amplified fra gments as well of exon 1of EDAgene in t he patients as well as their mothers,the carriers. EDA致病基因(EDA1基因)外显子1的PCR产物经SSCP分析显示,患者及其携带者母亲出现异常单链条带。
The system consists of two parallel DNA double helices that each reduce to a single strand in a central crossover region. 这套系统由两个平行的DNA双股螺旋组成，但这两个双股在中间互换位置处只剩一股而已。
Directionality , in molecular biology, refers to the end-to-end chemical orientation of a single strand of nucleic acid. 方向性，又称定向性，在分子生物学中，是指一个核酸股的端对端化学方位。
Single strand conformation polymorphism (SSCP) essay and sequence analysis of the PCR product were used to ascertain the gene mutation. 方法应用PCR及单链构象多态性(SSCP)分析技术结合基因序列测定方法确定突变类型。
In carrying out its various duties, RNA can take the form of a double helix that resembles DNA or of a folded single strand, much like a protein. RNA在执行其各项任务时，可以形成和DNA一样的双股螺旋结构，也可以和蛋白质一样以单股折叠成不同的构造。
The single-stranded portion of this DNA serves as the "linker DNA," which seeks out a complementary single strand of DNA attached to another gold nanoparticle. 该DNA的单股部分作为“连接DNA”而会向外搜索与其互补的附着在另一黄金纳米粒子上的单股DNA。
Lts most suitable for bleaching,dyeing post-water-washing treatment to spindled shiny fiber,single strand thin yarn,fabric silk silk cotton,thin silk,genuine silk,cashmere,etc. 适用于成绞状光丝、单股细纱、人造丝、丝光棉纱、绢丝、真丝及羊绒等手的漂白、精炼、染色、水洗及后处理。