本文介绍极慢速加荷条件下混凝土轴向拉伸试验方法，它能测定混凝土受载时的特性曲线。
The method of uniaxial tension test of concrete under ultra-low loading rate is described. It can be used to determine the characteristic curve of concrete under loading condition.
以退火纯铜及正火铝青铜在轴向拉伸下进行室温静、动态蠕变试验。
In this paper, creep tests were carried out on annealed pure copper and normalized bronze containing Al under static and cyclic tension at room temperature.
试验结果表明：轴向应力低于单轴压缩强度80%时孔道试样在内压下拉伸破裂，压力与轴向应力没有明显关系；
The experimental results show that the cracking pressure for hollow cylinder is not influenced by the axial load when it is lower than 80% of the uniaxial compression strength.
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