创造性步骤的英文怎么说

创造性步骤的英文：
inventive step

• unity of invention
  发明的单一性
• Fantastic! Who invented it?
  真不可思议！谁发明的？
• Necessity is the mother of invention
  穷则变,变则通
• Modern inventions facilitate housework.
  许多现代发明便利了家务劳动。
• He got a patent for this invention.
  他获得了这项发明的专利权。

• step by step welding
  跨步焊法
• It is a step class.
  这是踏板操训练班。
• They are not in step with the times.
  他们跟不上时代的步伐。
• the execution of steps
  舞步表演
• To work step by step is as good as riding in a carriage.
  安步当车