automobile parts design
scheme design of large-span bridge erection
Scheme design
机械设计
方案设计
概念设计
设计方案
运动方案设计
框架设计
水处理剂
计划设计图
工程计划设计
桥梁方案设计
Principle scheme design of mechanical transmission
Principle Scheme Design
Preliminary Design Scheme
scheme design of small arms
Optimization of Design Scheme
modularized scheme design
mechanical kinematic scheme design
machinery design scheme