Main compositions: double strands quaternary amine salt, solubilizing agent, softener and natural antibacterial essential oil.
主成份：新型无毒抗菌剂双链季胺盐、增溶剂、柔软剂、天然抗菌芳香精油。
RNA molecules form double stranded helices, just as do DNA molecules, by Watson Crick pairing of nucleotides on the two complementary strands of the helix.
RNA分子能像DNA分子那样形成双链螺旋，通过沃森·克里克配对，两个螺旋的核苷链互补。
Structurally, DNA is composed of two strands that intertwine to form a spring-like structure called the double helix.
从结构上讲，DNA是由两条链相互缠绕构成弹簧状结构称为双螺旋。
The structures are made from bundles of double-helix DNA strands.
这些结构是由一束束双螺旋DNA链构成。
This rope has serial products including three strands, eight strands, twelve strands and double braided armid fiber rope.
该缆绳品种有三股、八股、十二股和双层编织芳纶纤维绳缆。
Methods: the bactericidal mechanism of plasmas ozone against E. Coli on the surface was studied through observing change of ultramicrostructure, break of DNA double-strands and leakage of proteins.
方法：从超微结构、DNA链的断裂和蛋白质漏出三个方面研究等离子体臭氧对物体表面上大肠杆菌的杀灭机理。
A covalently linked chain of deoxribonu- cleotides. The double helix is composed of two DNA strands.
脱氧核糖核苷酸以共价键连接起来的链。双螺旋由两条DNA链组成。
The damage, known as inter-strand crosslinks, occurs when the two strands of the double helix are linked together, blocking replication and transcription.
这种损伤被称为链间交联，通常发生在双螺旋的两根链连接的时候，能抑制DNA复制和转录。
The damage, known as inter-strand crosslinks, occurs when the two strands of the double helix are linked together, blocking replication and transcription.
这种损伤被称为链间交联，通常发生在双螺旋的两根链连接的时候，能抑制DNA复制和转录。
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