extrnal meaning in Chinese

外部的/外存的/外设的

Such modular function as the high - static pressure spindle box , spring collet chcks of various sizes as well sw more than twenty kinds of front back , left and right tool rests for extrnal cutting , tool post for boing and drilling are available for users to select
本机床有多种功能模块部件，供用户选择使用，如：高精度静压主轴箱，气动和手动弹簧夹头快速夹紧机构，各种类型的弹簧夹头，车外圆的前刀架，后刀架，左刀架，右刀架以及钻孔刀架，镗孔刀架和冷却箱件等二十多种。