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1·The effects of testing temperature on notch impact strength, fractographic features and fracture surface roughness of PVC have been studied.

研究了温度对聚氯乙烯PVC缺口冲击强度、断口形貌特征及断面粗糙度的影响。

2·The testing results indicate that nanosized particles are uniformly located within bulk nanoplastics, and laser powers can strongly affect the HRL and notch impact strength of nanoplastics.

试验结果表明，纳米粒子均匀地分散在纳米塑料中， 激光功率对纳米塑料的洛氏硬度及缺口抗冲击强度有显著影响。

3·It expatiated the effects of the factors, such as sample size, temperature, humidity, notch and etc, on the result of the plastic impact strength test.

阐述了试样尺寸，温度、湿度、缺口以及缺口加工方式等因素对塑料冲击强度测试结果的影响。