Subsequently, the melted portion is rapidly cooled to a martensitic transformation region, to form a martensiticstructure.
随后，融化的部分迅速冷却到马氏体相变的地区，形成马氏体结构。
2
Said fluid machinery is designed especially as a turbo compressor for use at low temperatures, the housing preferably being made of a cold-resistant material that has a martensiticstructure.