Load and impactstrengthtest, found that this covers the load of 24 tons, the impactstrength is higher than that of conventional manhole cover.
载荷和抗冲击强度试验，发现这种井盖的载荷力为24吨，抗冲击强度也超过了普通井盖。
2
It expatiated the effects of the factors, such as sample size, temperature, humidity, notch and etc, on the result of the plastic impactstrengthtest.
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。
3
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.