超音波法液位元元元元元元测定
ultra-sonic method of liquid meaduremert
超单元组合—超单元—单元划分
divition of “super unit combine—super unit—unit
储层流动单元
reservoir fluid flow unit
reservoir flow unit
reservoir flow units
电动单元组合仪表
electrical unit component instrument
复合结构型式制动单元
Brake Unit with Parking Brake
火山岩储层流动单元
Volcanic reservoir flow units
立式单动单刃矫直机
vertical straight side single action single point press