由此确定了不同材料在不同环境溶液中的临界裂纹尺寸，得到了气瓶工作压力及等效应力与临界裂纹尺寸的关系曲线。

The critical crack sizes of different materials in H_2S environment were thus figured out, and the curves with working pressures and equivalent stress to critical crack size were plotted.

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由此确定了不同材料在不同环境溶液中的临界裂纹尺寸，得到了气瓶工作压力及等效应力与临界裂纹尺寸的关系曲线。

The critical crack sizes of different materials in H_2S environment were thus figured out, and the curves with working pressures and equivalent stress to critical crack size were plotted.

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