金属表带切割器
cutter for metal watch strap
水下切割割炬
underwater cutting blowpipe
色谱谱带
chromatographic band broadening
chromatographic hand broadening
压缩光谱谱带间隙
Compressed Width of Spectrographic Tape
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