But the quality of the rock wool quality can vary widely, heat preservation function good density low, the tensile strength is also low, durability is poorer.

但岩棉的质量优劣相差很大，保温机能好的密度低，其抗拉强度也低，耐久性比较差。

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In the field of thermology, diamond's heat-durability and heat conductivity were enhanced.

在热学方面，使金刚石的耐热性和导热性均有增加；

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The results show that AS cement possesses high early strength, low hydration heat and durability, but its shrinkage rate is higher than that of portland cement.

结果表明，碱-矿渣水泥具有早强、高强、低水化热和高耐久性等优良性能，但是干缩较大；

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However, these modified celluloses require large amounts of petroleum-based additives such as plasticizers, which results in bioplastics with a low plant component ratio and poor durability, including heat resistance and water resistance.

ENGADGET: NEC builds a better bioplastic from plant stems and cashew nut shells