冲压工艺方案
stamping process program
stamping process plan
Stamping process planning
实践教学方案设计
the design of practice teaching project
施工通风方案设计
Design of Construction Ventilation
枪械方案设计
scheme design of small arms
水价方案设计
water price scheme design
进洞方案设计
Design options of entrance
结构方案设计
structural project design
structural plan design
structure conceptual design