Preedyn.普里迪PREabbr.Petroleum Refining Engineer炼油工程师prefabricated reinforced concrete预制钢筋混凝土Pre-irradiation-induced graft预辐照接枝Pretreatment research of soy whey大豆乳清的预处理precholedochotomy cholangiography胆总管切开术前胆管造影术prefabricated-component factory预制构件厂precast of continuous beam bridge连续梁桥预制predispersed pigment preparations预分散颜料制剂pre-stressed concrete structure预应力混凝土结构Pre-Production Operational Test生产前运作试验Premixed gasoline/oxygen flame燃烧