这些盖由钢制成，以便具有足够的强度，并在密封表面装配有弹性部件。
These covers are constructed of steel for strength and fitted with elastomer components on the sealing surfaces.
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.
怎么办，他问道，难道你能付出英镑买回计算机细胞，把它们放在表面上，然后运行程序让计算机像蛋白质那样自行装配吗？
What if, he asked, you could buy computing cells by the pound, coat them on a surface, and run programs that assemble them like proteins to solve problems?
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