The results of mechanical test show that is bending strength, toughness against impact and void ratios can be improved after the rich iron matris is added with rare earth.
力学性能测试结果表明：添加稀土的富铁胎体及其金刚石复合材料的抗弯强度、 冲击韧性和孔隙度均有明显的改善。
The scratch strength tester has been improved in the paper, which can measure the impact toughness and has two uses.
对刮痕强度试验机进行适当的改进，就可测量芯砂的冲击韧性，并使一机两用。
Medium Toughened, high performance, heat stabilized, black polyamide 66 resin having good stiffness and improved knit line strength with superior toughness and processability.
中等增韧，高性能，热稳定，黑色尼龙66树脂具有卓越的韧性和加工性能良好的刚性和改善针织线强度。
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