step-down造句

1、Celery juice also can serve as diuresis and aperient and step-down fine medicine.
芹菜汁也可作为利尿和轻泻剂以及降压良药。

2、A step-down transformer can reduced a voltage to whatever value is desired.
降压变压器能把电压降到所需的任何值。

3、A step-down transformer can reduced a voltage to whatever value is desired
降压变压器能把电压降到所需的任何值。