外延生长台面式晶体管
epitaxial growth mesa transistor
延长油矿管理局青平川钻采公司
qingpingchuan oil drilling and producing company
yanchang oil bureau
延长油矿管理局永宁钻采公司
Drilling and Producing Oil Company of Yongning
Petroleum Administration Bureau of Yanchang Zhidan
Q-T间期延长综合征
Long Q-T interval syndrome