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| 1. | Many areas of the Arctic Circle where Nexecon intends to drill are known to have very unstable plate |
| 奈克松计划在北极圈 钻油的地方 都知道是不稳定的地壳结构 环境科学家罗勃阿姆斯壮教授 |
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| 2. | Nitroglycerin is the most dangerous and unstable explosive known to man. |
| 硝化甘油是人们所知道的最危险最不稳定的炸药 |
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| 3. | an unstable acid known only in solution and as chromate salts. |
| 一种不稳定的酸，已知仅存在于溶液中或作为一种铬酸盐。 |
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| 4. | Antioxidants are substances that protect cells from damage caused by unstable molecules known as free |
| 抗氧化物是一种能够保护体内细胞免受不稳定粒子自由基破坏的物质。 |
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| 5. | a weak unstable acid known only in solution and in its salts; used as a bleaching agent and as an oxidizing |
| 一种不稳定的弱酸，已知仅以溶液和盐的形式存在，用作漂白剂和氧化剂。 |
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