model year variation 新产品年度差异
One way oranother, the new sticker—whether based on a letter grade or some variation ofthe existing label—has to be ready for the 2012 model year.
不管是基于字母分级，还是现有标签的变种，新标签必须要在2012产品年能够投入使用。
With geomagnetic field model records, several kinds of secular variation of geomagnetic dipole moment and the position of the geomagnetic North Pole during the year 0 ~ 2000 a.
利用地磁场模型资料，计算和分析了公元0 ~ 2000年的地磁场偶极子磁矩和地磁北极位置的长期变化。
应用推荐