| 摘要 |
<p>The bag(10) has one or more separate marking elements(13, 14) to be identified by a filling, metering or cutting mechanism. The element may be positioned at a predetermined distance from a side edge and/or opening rim(15) of the bag. It may consist of a foil strip fixed by adhesive to the outside of the bag. The element may be an opaque adhesive paper panel, or a coil with reflective surface. It may be permanently magnetic or an electrical conductor, and may consist of a number of layers.</p> |
