In truth, Dr Watson, co-discoverer of the double-helical structure of DNA back in the 1950s, had a point.
事实上,在1950年当沃森博士合作发现DNA的双螺旋结构的时候,他的断言的确有一定的道理。
The double-helical DNA is a very important intermediate in storing and transferring genetic informations.
DNA双螺旋链是储存和传递遗传信息的重要载体。
The Flowserve GR series, double-helical, herringbone type gear pumps have long been a workhorse of the general industry.
长期以来,福斯gr系列人字齿型齿轮泵已成为一般工业的得力助手。
Synthesis of Intramolecular Double-helical Compound Connecting Chiral 2,2'-Substituted 1,1'-Binaphthyl with meta-Pyridine Bridges.
光学活性的2,2'-二取代1,1'-联萘和间吡啶桥构筑的分子内双螺旋化合物的合成。
Objective To investigate the clinical value of double-helical ct angiography (DCTA) and MR angiography (MRA) for intracranial aneurysm (an).
目的评价双层螺旋ct血管造影(DCTA)与MR血管造影(MRA)诊断脑动脉瘤(AN)的价值。
The Flowserve GAX cast iron series, double-helical, herringbone type gear pumps are designed to handle viscous fluids at low to medium flows and pressures.
斯gax铸铁系列、人字齿型、齿轮泵是为处理低到中等流量和压力的粘性液体而设计的。
Objective To evaluate the clinical value of double helical ct angiography (DHCTA) and coronary artery calcification (CAC) detection in diagnosis of coronary heart disease (CHD).
目的评价双层螺旋ct血管造影(DHCTA)与冠状动脉钙化(CAC)积分诊断冠心病(CHD)的临床价值。
The results showed that BK chromosomes reveal a multiple double strand helical structure.
观察到BK染色体具有多级双股螺旋结构。
Gear drawing standards - part 1: for spur, helical, double helical and rack.
齿轮制图标准。第1部分:正齿。螺旋齿。双螺旋齿和齿条。
At last, the radiated field of axial-mode helical antenna and double ridged horn antenna is analyzed at this paper.
最后,本文对轴向模螺旋天线和双脊喇叭天线的辐射场进行了分析。
To make sure that a plastic part with helical gear and spur gear can be demoulded successfully, an injection mould is designed with double parting faces, point gate feeding and rotating demould.
前言:为了保证一种既有斜齿轮又有直齿轮零件在注塑成形后能顺利脱模,给出了一套一模两位,点浇口进料,旋转脱模,胶套式二次分型的双分型面注射模的设计。
When carries various chemical modifications on double helical molecular of optically active, we can always gain derivatives which have specific properties.
在具有光学活性的螺旋分子母体上进行各种化学修饰,可以获得许多具有特殊性能的衍生物。
According to the theory of single cylindrical helical torsional spring, the cylindrical helical spring in double direction was designed to realize the test of torsion.
利用单个圆柱螺旋扭转弹簧扭转原理,给出了一种用双向扭转圆柱组合螺旋弹簧实现扭矩测试的方法。
DNA is composed of two polynucleotide chains associated so as to form a double helical molecule.
DNA是由两个相关联的聚核苷酸链组成的双螺旋分子…
Compound 6 is a 1d double helical chain containing 20-membered rings (6).
化合物6是一维的双螺旋结构,由20元环状结构单元组成。
The invention relates to a double helical ribbon pipe type reactor, which is particularly suitable for preparing high-performance polyacrylonitrile-based carbon fiber spinning solution.
本发明涉及一种双螺带管式反应器,尤其适用于高性能聚丙烯腈基碳纤维纺丝液制备。
The invention relates to a double helical ribbon pipe type reactor, which is particularly suitable for preparing high-performance polyacrylonitrile-based carbon fiber spinning solution.
本发明涉及一种双螺带管式反应器,尤其适用于高性能聚丙烯腈基碳纤维纺丝液制备。
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