多道次拉深
multi-step drawing
Multi-stage Drawing
Multi-stage Deep Drawing
automatic single crystal neutron diffractometer
多道次拉深旋压
multi-process draw-spinning
一次一密
one-time pad
one-time-pad
one-time key
one time pad
One-time password
once a key
different keys in each encryption
One-time One-password
one-time padding
一次一字符打印机
character-at-time printer
character-at-a-time printer
早深耕一次深施肥
earlier deep plough and deep fertilization
多道次拉拔
drawing with multi-passes