tar felt

基本解释

To keep the explorers warm, Nansen insulated his vessel with thick felt, reindeer hair, cork shavings, and tar.
而为了让给船员们保暖，南森用厚厚的毛毯、驯鹿的皮毛、软木以及焦油把船体围起来；
In this example, the first layer of tar felt is nailed to the boardIng and the subsequent layers are bonded to each other In hot tar .
此例中，第一层油毡是用钉子钉在木板上的。上面的几层油毡是用热沥青粘合起来的。
FIG. 9 illustrates a simple flat roof, consisting of timber bearers covered with timber boarding and finished with several layers of tar felt.
图9所示为一个简单的平屋顶它由木承梁组成并铺以木板，再铺几层油毡防水。