内江主体工程
main works on the inner river
聚合反应工程
polymerization engineering
Polymrization engineering
polymerization reaction engineering
melt polymerization
PD control proportional-derivative control
聚合物加工工程
polymer processing engineering
not-ground not operational ready
NORSNG
聚合物制备工程
polymer preparation engineering
聚集工程
water accumulation project
聚焦并行工程
The Focus on the Concurrent Engineering
聚酰胺工程塑料
polyamide engineering plastic