Updated zh_CN lang to the latest version and a lot of adjustment.

Noticed somebody modified the language files last time,and then I found some are not much suitable.（Some is better,so I keep it in the new version）
The most important things in translation is faithfulness,then expressiveness and elegance.Anyone shouldn't use a similar word to describe a different object in fact.
The last version of the file miss too many meaning of the original words,and try to tell the player what the translator think it is but not macth The original.
e.g 
interdiction moduel -->"防御模块"(Which means "defense" in Chinese)
Scale moduel--> "拓展模块"(Which means "expand" in Chinese)
Even a man know Chinese a little can judge it's not suitable by checking the Chinese-English dictionary.
And @calclavia,I think you can judge which is better by reading it carefully.I think that you can speak Chinese.