单词	steel grain drilling
释义	steel grain drilling 钢粒钻进
随便看	positive likelihood ratio dependence positive limiting positive limit set positive line positive linear convolution periodic operator positive linear convolution periodic operators positive linear functional positive linear mapping positive linear operator positive linear operators positive linear periodic convolution operators positive linear relationship positive list positive list system Positive List System of Japan positive literal positivelization positive locking positive-locking differential Positive Locking System Positive logarithm positive logic positive logic disturbance positive logicrule positive logic system