Milling cutters -- interchangeability dimensions for cutter arbors or cutter mandrels .
铣刀铣刀杆或铣刀芯轴的互换性尺寸。
Vaccine interchangeability and combinations of vaccines .
疫苗的互换和疫苗联合。
Corporation may make such minor changes and corrections in the specification as it may deem appropriate to correct defects or improve the equipment ; provided that such changes shall not adversely affect the total purchase price , functional characteristics , performance , interchangeability of spare parts .
