Panels a, b and f and crossbar h with aircraft-grade aluminum?

嵌A B F和横木H都换成航空铝？

And everything is connected using these crossbar switches, which are bus systems.

一切都使用这些交叉开关连接，这些交叉开关是总线系统。

The center crossbar is to extend from end to end at the middle of the frames.

中闩要从这一头通到一头。

They made the center crossbar so that it extended from end to end at the middle of the frames.

使中闩从这一头通到一头。

Other writers have learned the basics while serving in the Navy, working in steel mills, or doing time in America's finer crossbar hotels.

另外有些作家是在海军军营里、炼钢厂里，或是在美国精美铁窗宾馆里熬日子时候学会了写作基本技巧。

Overlay the frames with gold and make gold rings to hold the crossbars. Also overlay the crossbars with gold.

要用金子包裹，又要作上金环套闩，闩也要用金子包裹。

They overlaid the frames with gold and made gold rings to hold the crossbars. They also overlaid the crossbars with gold.

用金子将包裹，又作上金环套闩；闩也用金子包裹。

By the time she reached the gate the boy was sauntering down the road, whistling carelessly; but she saw that a letter had been thrust between the slats and the crossbar of the gate.

当她到达门口时， 男孩已经在路上闲逛， 漫不经心地吹着口哨。但她看到一封信被塞进了大门条和横梁之。