The building has a very high fire resistance rating.

这座建筑的耐火等级非常高。

Do you know the fire resistance rating of this door?

你知道这扇门的耐火等级是多少吗？

The wall's fire resistance rating meets national standards.

这堵墙的耐火等级符合国家标准。

We must consider the fire resistance rating when choosing materials.

选择材料时，我们必须考虑其耐火等级。

Increasing the fire resistance rating of a building can enhance safety.

提高建筑物的耐火等级可以增加安全性。

The products have been tested on fire resistance.

本产品有耐火功能.

Features: high fire resistance, sound insulation and high strength.

优点: 耐火性能好, 隔音效果好,强度高.

Fire resistance of composite slab has been calculated using a kind of numeric method.

采用数值算法计算了组合板的耐火极限,同时分析了影响组合板耐火极限的参数.

Flexible, easy to bend. Simple laying and excellent in fire-resistance etc are the advantages of this product.

金山牌耐火电力电缆具有柔软、易弯曲，敷设方便、耐火性能优异等特点。

The research on fire-endurance performance and fire-resistance design of composite structures is one of the hot topics in structural engineering.

组合结构的耐火性能和抗火设计原理研究是工程界所关注的热点问题。