Development tendency of mechanical properties is: density increase oil content ratio decreases, Brinall hardness increases, crushing strength goes down first and then goes up.
机械性能的变化趋势是：密度增加，含油率下降，布氏硬度增加，而压溃强度先降低后增加。
PEI 5% in the content, the composite material has better mechanical properties, bending strength increase by 28.0%, impact strength 26.1%.
在PEI含量5%左右时，复合材料的综合力学性能较佳，弯曲强度提高了28.0%，冲击强度提高了26.1%。
With the increase of concentration, the breakthrough time and sulfur capacity were significantly increased, but the mechanical strength had declined somewhat.
随着含量的增加，脱硫剂穿透时间和一次硫容都明显增加，但是机械强度却有所下降。
Studies for the mechanical properties of concrete are very important to increase the strength of concrete material, improve design level and reduce the construction cost.
其力学特性的研究对充分发挥材料的强度，提高设计水平和降低工程造价具有十分重要的意义。
Design and operation experience has shown that, the transposition of high voltage transmission lines would weaken the mechanical strength and increase the cost of its construction and operation.
但设计和运行经验证明，高压线路完全换位会减弱线路的机械强度，并增加其建造和运行的费用。
The results show that the hygroscopicity and dyeability improve significantly with the big increase of grafting rate, while the mechanical strength of the fabric lowers somewhat.
随着接枝率的大幅度提高，纤维织物的吸湿性和染色性有明显的提高，但纤维织物的机械性能将有所下降。
All materials are red HIP treatment, remove the alloy internal pores, and increase, improve the alloy flexural strength and other mechanical properties, so that the quality guarantee.
所有材料均红过HIP处理，除去合金组织内部微孔，且增加、改善合金抗弯强度等机械性能，使品质完全确保。
The mechanical autofrettage of thick-walled cylinders is a sort of practical and valuable technique used to enhance its elastic strength of thick-walled tube and increase its fatigue life.
厚壁圆筒机械自紧技术是一项有实用价值的工艺技术。它可提高厚壁圆筒的弹性强度和疲劳寿命。
Part crystallization phase affected the mechanical behavior and resulted an increase in hardness and an decrease in compression strength.
而晶化相的存在会对力学性能产生影响，含部分晶化相的非晶合金硬度升高，压缩强度下降。
Part crystallization phase affected the mechanical behavior and resulted an increase in hardness and an decrease in compression strength.
而晶化相的存在会对力学性能产生影响，含部分晶化相的非晶合金硬度升高，压缩强度下降。
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