DNA and RNA as the heredity matters, they belong to phosphoric di-ester that is their bridge linkage group.
遗传物质DNA和RNA是磷酸二酯，磷酸酯基团是连接核酸的桥连基团。
The idea can meet with the bridge aesthetics better that is to install the longitudinal linkage between 2 special-shaped arches.
在两异型拱之间设置纵向连杆的异型拱桥设计思路，可更好地满足桥梁美学要求。
The idea can meet with the bridge aesthetics better that is to install the longitudinal linkage between 2 special-shaped arches.
在两异型拱之间设置纵向连杆的异型拱桥设计思路，可更好地满足桥梁美学要求。
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