| 单词 | 7-membered |
| 例句 | In practice, a real carbon lattice is strained by defects, polluted by 5- or 7-membered rings, its edge is ragged, and it sits on a substrate that interferes with its properties. Production: Beyond sticky tape 2012-03-14T22:50:43.050Z The clusters never stitch together perfectly, so the final graphene sheet looks like a patchwork quilt of carbon, with kinks of 5- and 7-membered rings where each patch joins with the next. Production: Beyond sticky tape 2012-03-14T22:50:43.050Z |
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