The microcracks have certain effects on reducing the average thermal expansion coefficient, nevertheless they decrease the mechanical strength of the ceramics.
微裂纹对降低陶瓷材料的平均膨胀系数有一定作用，但同时又降低了材料的机械强度。
The content of active component was not as high as possible, it had a certain relationship with mechanical strength which was directly related to the desulfurizer of the re-use.
活性组分的含量不是越高越好，它与脱硫剂的机械强度有一定的关系，而机械强度则直接关系到脱硫剂的重复使用。
The content of active component was not as high as possible, it had a certain relationship with mechanical strength which was directly related to the desulfurizer of the re-use.
活性组分的含量不是越高越好，它与脱硫剂的机械强度有一定的关系，而机械强度则直接关系到脱硫剂的重复使用。
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