Hengyang City in Hunan Province concave surface of the shaft, surrounded with a ring of intermittent ridge mountain ridge, a typical situation in the basin.

衡阳市处于湖南省凹形面的轴带部分，周围环绕着断续环带属岭脊山地，构成典型的盆地形势。

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The individual part might show in intermittent traces, supposed as dendritic, needle-like, feathery, fibrous, ring or alternated folded ribbon shape etc.

单独部分的形状可呈为似断似续的树枝状、针状、羽状、纤维状、环状或折叠带状等。

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Thep-benzoquinone was oxidized to open the ring and formed other intermittent products such as butanol, butanone, propanoic acid and ethanediol.

对苯醌开环后，进一步被氧化，中间会生成丁醇、丁酮、丙醇、乙二醇等。

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