在此基础上，进一步对主桩架结构包括支柱、顶架平台、支座等进行了强度校核验算，并对桩架的运行安全提出了建议。

The main structures with strength checking include the stanchion, the upper platform and the base seat. The suggestions about the safety of the pile driving frame are put forward.

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每个主起落架支柱具有一部双机轮组件，主起落架支柱安装在机翼结构中。

The MLG legs, each with a twin-wheel assembly, are installed in the wings.

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它们均通过主梁的首末端等附加构件连接，并在框架上表面装配附加风支柱。

These are connected via additional structural members with the upper and lower sides of the main beams and equipped with additional wind bracing on the upper surface of the frame.

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There are two upright struts of the ladder, one shown in blue here, the other shown black.

两条上下的主链作为支柱,一条以蓝色表示,一条以黑色表示

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It's the phosphate and the pentose that make up the backbone - that make up the upright struts of the ladder and it's the bases that make up the connecting struts, so the bases are the colors.

磷酸基和戊糖,共同构成了主链,主链又构成了梯子上下的支柱,而碱基,则构成连接支柱的梯阶,碱基是用各种颜色表示的

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The backbone's on the outside of the molecule like the upright struts of a ladder on the outside of a ladder.

主链位于DNA分子结构外侧,像梯子两侧上下的支柱,记住是梯子外侧

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