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1·They used waterproof cement to prevent water from seeping through the roof the tunnel.

他们用防水的水泥阻止水从坑道的顶上渗入。

2·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。

3·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。

4·They used waterproof cement to prevent water from seeping through the roof of the runnel .

他们使用防雨水泥以防止雨水从屋顶的排水渠里渗透出来。

5·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。

6·May be made waterproof mortar cement as rigid waterproofing absolutely first-class.

亦可与水泥制成防水砂浆，作为刚性防水绝对一流。

7·Based on interface science principle, effect of silanes waterproof coatings on cement concrete surface was revealed.

依照界面科学原理，叙述硅烷系防水涂料在水泥混凝土表面的作用。

8·Crack waterproof layer materials by crack cement mortar complex fiberglass nets composition, but the long-term effective control protection layer the creation of cracks.

抗裂防水保护层材料由抗裂水泥砂浆复合玻纤网组成，可长期有效控制防护层裂缝的产生。

9·The film-forming and waterproofing mechanism of Polymer cement waterproof coating is described. Two sorts of products of its kind with different elongation property are also described.

介绍了聚合物水泥防水涂料的成膜机理和防水机理，并对其具有不同延伸性能的两大类产品作了简要说明。

10·The text overpass test to co (?) firm the effect of the three kind of cement based capillary crystalline waterproof material Xypex, Naishen, JL, which can modify the strength.

本文通过试验确定赛柏斯、耐渗、JL三种水泥基渗透结晶型防水材料对混凝土的强度、抗渗性能和抗冻等级的改变。