释义 |
sealing-off 英'siːlɪŋ'ɔːf美'siːlɪŋ'ɔːf COCA²⁸⁰¹³⁶⁺⁵BNC²³⁶²¹³⁺¹ 基本英英例句 开焊,封口
动词 seal off: make tight; secure against leakageimpose a blockade onIt adopts double working position for winding,unwinding and sealing.双工位放料和收卷,双工位封口。 The shaping step is especially designed to keep the sealing from breaking, so the sealing is flat and smooth.为了避免封口起皱,本机特设计整形工位,使封口平整无褶皱。 |