无油管采油
oil production with no tubing
钢管张力减径机
Steel tube stretch-reducing mill
海绵表面张力管理装置
sponge surface tension propellant management device
内聚力-黏着力-张力学说
cohesion-adhesion-tension theory
肾素－血管张力素－醛固酮系统
renin-angiotensin-aldosterone system
血管张力
vascular arterial tension
vascular tone
Vascular tension