Load and impact strength test, found that this covers the load of 24 tons, the impact strength 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。

youdao

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。

youdao