五月反应速度慢了一点 may reponse a bit slow
温度低，反应速度慢，光亮度稍差；
The temperature is low, the reaction rate is slow, the radiance misses slightly;
就目前而言，量子效率低、反应速度慢等缺点制约了光催化氧化的应用。
However, it has some disadvantages keeping back its application, such as low quantum efficiency, low reaction rate.
结果表明：与TR2000相比，国产电缆护套料DH170T的热分解反应阻力大、 反应速度慢，因而寿命更长。
Result showed that the thermo decomposition reaction of DH170T had higher resistance, lower reacting rate and longer service life than TR2000.
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