rotation method

• 循环法,旋转法

rotation method的用法和样例：

例句

1. The ammonium fluoride and ammonia closed cycle method for white carbon black production from dewaxed and deoiled waste clay.
   氟化铵和氨循环法从脱腊脱油废白土中制取白炭黑。
2. Formaldehyde emission content of particleboard and MDF are tested with perforator method and ACM.Results show that there is a methematical relationship between two testing methods.
   分别用穿孔法和空气循环法测试了刨花板和中密度纤维板的甲醛散发量，发现二者之间有线性关系。