Disposed between in embedded fashion between two of the belt plies (23, 25) is a pair of substantially full spiral helically wound overlays (24).
以嵌入方式置于两个带束帘布层(23、25)之间的是一对基本上完全盘旋螺旋缠绕的覆盖层(24)。
The helically wound coil is expandable into sealing engagement with a cylindrical wall of the molding machine.
所述螺旋缠绕线圈可膨胀成与所述 模制机的一圆筒壁密封啮合。
The seal is provided by the combination of a peripheral groove in an outer surface of the check valve and a helically wound core in the groove.
通过组合所述止回阀的一外表面中的一周边槽与所述槽中的一螺旋缠绕芯来提供所述封垫。
The helically wound coil may be movable laterally in the groove between a melt channel open position and a melt channel closed position to open or seal the melt channel.
所述螺旋缠绕线圈可在所述槽内在一熔体通道打开位置与一熔体通道关闭位置之间横向移动,以打开或密封所述熔体通道。