词汇	贞凝
释义	贞凝 zhēn níng端莊凝重。
随便看	direct current electrotherapy direct-current emission direct-current erase direct current erasing direct current erasing head direct-current erasing head direct current excited field generator direct-current excited-field generator direct current excited iron core reactor directcurrent excited iron-cure reactor direct current excited laser direct-current excited reactor direct-current exciter direct current experiment direct-current experiment direct current face plate starter Direct current feed control panel direct current feeder cable direct current field direct-current field direct current filtering direct current fixtures selection direct current flash butt welding direct current follow up system direct current furnace