这张邮票是独一无二的;再找不到类似的一枚了。
本文的设计思路对今后无杆泵采油等类似问题具有启发作用。
This design thinking may have inspirement for similar non-rod pump production from now on.
另外,无连接的传输服务与无连接的网络服务也非常类似。
Furthermore, the connectionless transport service is also very similar to the connectionless network service.
另外,无连接的传输服务与无连接的网络服务也非常类似。
Furthermore, the connectionless transport service is also very similar to the connectionless network service.
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