| 摘要 |
<p>A moulded box of a light expanded material such as polystyrene or polyurethane has a base and a cover which permit stacking, aeration holes being provided in the boxes so that when they are stacked the holes connect with passages communicating with the atmosphere and remain unobstructed between the boxes. The holes may be in the cover opening into a dished recess. The box is preferably rectangular and may have internal ribs for separation. the packages are suitable for conveying young eels by air.</p> |
