rotation field造句

Characteristics of nitrogen leaching of rice - wheat rotation field in taihu lake area
太湖地区稻麦轮作农田氮素淋洗特点
The magnetic bearing ( mb ) , widely used in high speed rotation field , has the advantage over conventional mechanical bearing in many aspects , such as no mechanical contact between the rotor and the bearing , no lubrication , no pollution , long - life span and so forth
由于磁轴承的转子和轴承之间没有机械接触，无须润滑，无油污染，使用寿命长，这些特点使它在高速旋转领域获得了广泛的应用。
It's difficult to find rotation field in a sentence. 用rotation field造句挺难的