waterproof cement

基本解释

They used waterproof cement to prevent water from seeping through the roof of the tunnel.
他们用防水的水泥防止水从隧道顶部渗入。
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They used waterproof cement to prevent water from seeping through the roof of the runnel.
他们用防水水泥来防止水从屋顶的排水通道里渗透。
A new waterproof material, i. e. waterproof cement roof slab reinforced with vegetable fibre, is introduced in the paper and its process of development and properties as well.
本文介绍了一种新型防水材料即植物纤维水泥防渗漏屋面板，阐述了该材料的研制过程及其性能。