| 摘要 |
<p>The inventive wall block comprises a polyhedral body which is made of a light concrete and provided with one or several channels, wherein thin-walled cylinders made of a heat-insulating material and repeating the shape of channels are mounted. One part of the channels and the thin-walled cylinders arranged therein are embodied in the form of through openings open on two sides and the other part channels and the thin-walled cylinders arranged therein are embodied in the form of openings with sealed bases.</p> |
