执行交付 » Implementation delivery 一种单位产量高 » A unit output is high 孤独并不是没有朋友，而是没有人住在我心里！ » Loneliness is not without friends, but no one lives in my heart!
Central to theconceptofeconomies of scaleis the idea that the bestwaytoachievehigh efficiency, andhencelowunitcosts, isthrough the massproduction of astandardizedoutput.