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- Keywords polyacetylene（PA）;helical chirality;asymmetric force field;tunable; 聚乙炔;螺旋手性;不对称力场;可调控的;
- Polyacetylene (PA) is a symmetric chain of conjugated macromolecule, whose chain symmetry can, however, be broken by external and internal perturbations, generating helically chiral polymers. 聚乙炔是链对称的共轭大分子,在内外界的微扰下，其主链的对称性能够被破坏，而产生螺旋手性结构。
- Polyacetylene(PA) is a symmetric chain conjugated macromolecule,whose chain symmetry can,however,be broken by external and internal perturbations,generating helically chiral polymers. 聚乙炔是链对称的共轭大分子,在内外界的微扰下,其主链的对称性能够被破坏,而产生螺旋手性结构。
- helical chirality 螺旋手性
- The helical spring can no longer be used. 盘簧不能再用了。
- The polynucleotide chain is helical. 多核苷酸键是螺旋形的。
- L-Methyl glyoxylate is an important chiral reagent. 二羟乙酸L-薄荷酯是一种重要的手性试剂。
- Such a carbon is designated as a chiral carbon. 这样的碳原子称为手性碳。
- Zhejiang Chiral Medicine Chemicals Co., Ltd. 浙江手心医药化学品有限公司。
- Hangzhou Chiral Danyuan Chemicals Co., Ltd. 杭州手心丹源化学品有限公司。
- The helical gear has become worked down over the years. 斜齿轮因为年久而磨损了。
- Chengdu Likai Chiral Tech Co., Ltd. 成都丽凯手性技术有限公司。
- Zaozhuang Chiral Pharmaceutical Chemicals Co., Ltd. 枣庄麒彩手性药物化学有限公司。
- These carbon atoms are therefore chiral. 因此,这个碳原子称手性碳原子。
- Chiral drugs are more important in new drugs. 手性药物在新药中越来越受重视。
- The ee is assessed by chiral GC and/or polarimetry. 对映异构体过量值由手性气相色层分析和/或旋光测定法测得。
- The milling machine is often employed to cutspur and helical gears. 铣床常用来铣制正齿轮和斜齿轮。
- Virions may be polyhedral or helical and vary greatly in size. 其形状有多面体形和螺旋形，其体积大小多变。
- Helical circular mixture ,fast and uniform stirring. 螺旋循环搅拌使得原料混合更加均匀、快速。
- Helical rotor is one of the key parts of high consistency repulper. 螺旋转子是高浓碎浆机的关键部件。
