材料加工工程
engineering of materials processing
材料加工工业与技术
material processing industry and technology
材料加工设备
Equipment for Machining Inorganic Nonmetallic Materials
材料加工制备
materials manufacture and modification
复合材料加工技术
composites processing technology
激光材料加工
laser material processing
金属材料加工性能
Workability of metal materials
铝合金加工材料
aluminum alloy processing material
铝及铝合金加工材料
aluminum and its alloy processing material
难加工材料
hard processing materials
Hard to machine materials
materials hard to machining
difficult to machine material
hard to machine material
Difficult-to-cut Materials
difficult-cutting material
hardmachined material
hard-to-cut material
Difficult-to-cut Material
difficult-to-machining material
Difficult-to-Machine Material
difficult-to-grinding material
hard-to-machine materials
hard-to-working material
difficult-to-process material
difficult-machining-material