无切割井拉槽
pull open grooving without grooving well
无血切肝术
Bloodless liver resection
水下切割割炬
underwater cutting blowpipe
低氧无血清
hypoxia and serum deprivation
动脉环无血清培养
Serum-free matrix culture of aorta ring
固本止血无忧汤
GuBen ZhiXue WuYou decoction
激光无损切割
laser damage-free cutting
无切变边界层
shear-free boundary layer
无切二次曲线
quadratic curve without contact