| 摘要 |
<p>A pick-up tip assembly that includes a plurality of overlapping petals 14, 16, 18, 20, 22 defining a petal enclosure having a distal end opening 26. A displaceable member is engagable with the plurality of petals and the size L2 of the distal end opening is adjustable by displacement of the displaceable member.</p> |
