BaseNP基本名词短语basen.底部；基地；基础；基数；基线；(棒球)垒；[化]碱vt.以 ... 作基础adj.卑鄙的；不道德的based variable带基变量,基本变量,基底变量base apex line棱底线base leak bias基极泄漏偏置base direction基线方向base stanchion基座标志柱base of a wall墙脚base pair rule碱基配对规律Base Bleed Unit弹底喷气弹base land price基准地价based isolation基础隔震