As the oil price fell in the second half of the 1980s and 1990s, steelmakers were able to react to periodic Australian demands for higher ore prices by shifting volumes to Latin America.
由于在二十世纪八十年代和九十年代的后半期油价下落，钢铁生产商通过向拉丁美洲增加采购量来应对澳大利亚人周期性的铁矿石涨价要求。
The second part: the trait of the surplus of agricultural labors and shifting in Weifang.
第二部分：潍坊市农业剩余劳动力及转移特点。
In the second place, paper researches the topology extends based on Triangular carrier phase shifting SPWM technique.
其次，论文研究了基于三角载波移相SPWM控制方法的拓扑扩展。
应用推荐