美国石油协会美国石油学会美国油量计量标准
american petroleum institute
石油计量表
petroleum measurement tables
中国石油石油勘探开发科学研究院
Research Institute of Petroleum Exploration and Development
PetroChina
中国石油石油勘探开发科学研究院西北分院
northwest sub-institute
Research Institute of Petroleum Exploration and Development
PetroChina
northwest branch
northwest institute
中国石油石油勘探开发研究院
Petroleum Exploration and Development Research Institute
PetroChina
beijing
油量计量
measurement of oil quantity
电能量计量计费
power telemeter and settlement system
电能量计量计费系统
power energy billing system
telemeter reading system
the System of Measuring and Billing of Power Energy
tele meter reading system
当代石油石化
petroleum & petrochemical today
跨国石油石化公司
multinational petroleum and petrochemical company