病毒表面3-fold 5-fold什么意思
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3-fold axis 双语例句
1. At the 3-fold axis, there is the triangle plateau with 60〓 of side length.
三次轴的位置上是一个高度为5 〓，边长为60 〓的等边三角形平台。
2. Crystal has long periodic and orientational order, which is limited to only be 2, 3, 4, or 6-fold axis caused by periodic order.
晶体则具有长程周期平移序和取向序，而取向序则受到周期性的限制而只能具有二次、三次、四次和六次旋转对称。
3. The coaxial three-mirror configuration consists of three pieces of aspherical mirror and a piece of fold mirror (45 ° reflecting angle) with better performance than two-mirror configuration, still its design and manufacturing are easier than those of off-axis three-mirror structure.
望远镜系统为同轴三反射镜构型，由3片非球面镜和1片45度全反镜组成，其性能优于两反，而设计与制造又相对离轴三反容易；
1. At the 3-fold axis, there is the triangle plateau with 60〓 of side length.
三次轴的位置上是一个高度为5 〓，边长为60 〓的等边三角形平台。
2. Crystal has long periodic and orientational order, which is limited to only be 2, 3, 4, or 6-fold axis caused by periodic order.
晶体则具有长程周期平移序和取向序，而取向序则受到周期性的限制而只能具有二次、三次、四次和六次旋转对称。
3. The coaxial three-mirror configuration consists of three pieces of aspherical mirror and a piece of fold mirror (45 ° reflecting angle) with better performance than two-mirror configuration, still its design and manufacturing are easier than those of off-axis three-mirror structure.
望远镜系统为同轴三反射镜构型，由3片非球面镜和1片45度全反镜组成，其性能优于两反，而设计与制造又相对离轴三反容易；
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