拱形结构

【机】 arch framing

拱的英语翻译：

arch; hump up; surround
【机】 arcade arch; arch

形的英语翻译：

appear; body; compare; entity; form; look; shape
【医】 appearance; morpho-; shape

结构的英语翻译：

frame; structure; composition; configuration; construction; fabric; mechanism
【计】 frame work
【医】 constitution; formatio; formation; installation; structure; tcxture