1. Olivia runs a lathe which cuts semifinished product of metal by inches. 
   奥利维亚开动一台车床，车床一点一点地切削着金属毛坯。
2. Nowadays the steel is sometimes cast into its semifinished form directly from its molten state. 
   现在钢有时可直接从熔化状态铸成毛坯。
3. Assemble with supply parts 
   来件装配
4. motor vehicle parts repair 
   汽车零件修理
5. powder metallurgy structural parts 
   粉末冶金结构零件

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