每分钟打印的行数，是打印机打印速度的标志的英文

lpm lines per minute

• 每:    every; each; per
• 分钟:    Each speaker was l ...
• 打印:    put a seal on; sta ...
• 的:    4次方是 The fourth po ...
• 行数:    line number
• 是:    Semantics
• 打印机:    printer marking pu ...
• 速度:    velocity; speed; b ...
• 标志:    sign; mark; symbol ...