external

the external appearance of the building.大楼的外观

external environment,外环境

external force,外力

external wall,外墙；外堤

external economy,外部经济

external pressure,外部压力

external condition,外在环境，外界条件

external appearance,外观；外形

external world,外在世界

for external use,外用；外用的；外用药

external application,外用

external magnetic field,外部磁场，外磁场

external trade,对外贸易

external factor,外在因素，外因；外来因素

external power,外功率，外电源

external surface,外表面

external disturbance,外扰，外部干扰

external form,外形

external insulation,外绝缘

external debt,外债

external cause,外因