求翻译：3\这些材料受气温影响较大，高温流淌，低温脆裂，易老化且不环保。为满足技术标准较高大型长距离输水渠道要求，尝试采用性能优，费用低，运行效果好，适应气候变化的新型伸缩缝止水填料,在寒冷地区大型引水渠道施工中的推广和使用尤为重要。是什么意思？

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3\ these materials under the influence of temperature is large, flowing at high temperature, low temperature embrittlement, easy to aging and not environmentally friendly. To meet the high technical standard large long-distance water channels require, try the excellent performance, low cost, running