这个城市小型湖泊星罗棋布，有天然的也有人工的。The city is dotted with small lakes, natural and artificial.现在有很多算法来生成人工的地形.There are also lots of algorithms to create artificial terrains.在英文中Artificial这个词有两个含义,一是人工的,二是假的.There are two meanings ...
Welcome to the Bio - geomagnetism Group of the PGL in Beijing!欢迎来到北京生物地磁学实验室!The earth is surrounded by the geomagnetism. The geomagnetism is stable and has some regulation.地球磁场遍布整个地球, 而且相对比较稳定,并有一定的规律可循....