首先，UDP是无连接的。
由于IP是无连接的服务，所以没有明显的连接状态。
Because IP is a connectionless service, no explicit connection status is available.
是一个无连接的UDP协议，因此，它可以很容易地欺骗。
UDP is a connectionless protocol and, as such, it can be easily spoofed.
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.
我还遇到了另一个问题：这个程序不接受无密码连接。
I also met another problem: the program wouldn't accept a password-less connection.
时有时无的网络连接使故障查询工作更加困难。
The up and down network connectivity makes the troubleshooting matter even worse.
结构独特、无键连接、高铬板锤、独特的反击衬板；
Special structure, keyless connection, high-chromium plate hammer, particular impact liner;
传动装置连接全部采用无键连接，拆卸简单，维修方便。
Transmission device all adopt no key links, disassembled, convenient maintenance.
传动装置连接全部采用无键连接，拆卸简单，维修方便。
Transmission device all adopt no key links, disassembled, convenient maintenance.
应用推荐