But overall, China is far behind the developed countries in this area.
但总的来说，与发达国际的水平差距很大。
I have developed a strong relation to that area of the world in the past.
在过去我和这个地区建立了紧密的联系。
So the new storage system SAN(Storage Area Network) was developed.
新的存储系统SAN（存储区域网）便应运而生。
In the study area, it developed four class fractures.
研究区主要发育发育四级裂缝。
In the study area, it developed four class fractures.
研究区主要发育发育四级裂缝。
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