那位达人帮我翻译下论文摘要......

Arrival of network ages make the safe problem have already involved a national sovereignty to wait many important problems.Because at present to the safe measure disadvantage of network, the international community suffered huge great damage.Therefore, the safe problem has become one on the network urgent need the problem for resolve.The basic variety of threat and its content occurrence that this text faces for the network safety, discussed the safe model principle of network, put forward the safe strategy of multi-layer protection system, expatiation fire wall, invade an examination, data to encrypt etc. technical classification and main technique characteristic, elucidation in physically the application of general principle.