超音波法液位元元元元元元测定
ultra-sonic method of liquid meaduremert
自生自储
underlayer-producing and overlayer-reserving
self-generation and self-storage
自生自储油藏
self-generating and self-preserving reservoir
伴生元素测量
accompanying element measurement
伴生元素赋存状态
modes of occurrence of associated elements
抗生素生产
Production of antibiotics
煤中伴生元素
accompanying element in coal