peer 平辈之人,平级的。peer to peer网络传输,用户电脑直接互传。传统的网络传输方式是一方上传到服务器,另一方下载。上把服务器称作高级节普通用户的电脑则是低级节点,所以上传和下载一方是高级节点,一方是低级节点,不是平级传输。如果直接从一个电脑传到另一个电脑,则是两个平级节点之间的数据互传,所以叫 peer to peer.
1.environment protection ** the most important socio-economic **sue which concerned by people all of the world,but also a major research of science and technology field.environmental science ** a com...