不锈钢片材常用代号
Designation of SUS Steel Special Use Stainless
不锈钢代用焊条
stainless steel substitutional electrode
材料代用
replacement of materials
Matrial substitution
substitute material
Base material substitution
采用用户仪器的测井服务
customer instrument service
柴油机代用燃料
alternate fuel for diesel engine
超清洁代用燃料
Ultra clean alternative fuel
车种代用
Substitution of Car Types
Substitution of Empty Car Types
substitution of car type
成分代用模式
surrogate component model