切割定律
cut law
cutting law
cutting theory
affinity law for impeller trim
trimming law
水下切割割炬
underwater cutting blowpipe
250D空气等离子弧切割机
250D plasma cutting machine
25G经结膜免缝合玻璃体切割手术系统
25G transconjunctival sutureless vitrectomy system
DNA的识别与切割
recognition and cleavage of DNA
Gyrus等离子体双极切割系统
gyrus-plasma kinetic system
Gyrus-PKS