| 摘要 |
<p>The concrete or reinforced-concrete floor plate is for use in animal stalls, particularly for cattle, and has a large number of holes at intervals. Openings of different shape in plan view are formed in the plate, and can include small-dia. round holes and also slots. The slots are typically at the end nearest the manger, and they extend either in the lengthwise or the transverse direction of the plate, inside the area enclosed by a supporting frame underneath.</p> |
