Measurement of tensile strength , modulus and strain of nanometer SiO2/epoxy composite materials was conducted using self-designed tensile testing jigs at room temperature and 77K.

通过使用本实验室设计的低温拉伸夹具，测定了纳米二氧化硅改性环氧树脂复合材料在室温和液氮（77K）环境下的拉伸强度、弹性模量和延伸率。

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Among the admonitions in those Rules is a prohibition against taking into the testing room any personal items including notes and study materials.

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