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| phosphorus | |||
| phosphor (luminescent material) | |||
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| phosphorous | |||
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| phosphor | |||
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| phosphorus (phosphorus) | |||
| phosphor | |||
| phosphorus A nonmetallic element used to manufacture phosphoric acid, in phosphor bronzes, incendiaries, pyrotechnics, matches, and rat poisons; the white or yellow allotrope is a soft waxy solid, soluble in carbon disulfide, insoluble in water and alcohol, and is poisonous and self-igniting in air; the red allotrope is an amorphous powder, insoluble in all solvents and is nonpoisonous; the black allotrope comprises lustrous crystals similar to graphite, and is insoluble in most solvents | |||
| phosphide | |||
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| phosphoric | |||
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| phosphorous | |||
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Phosphor : 69 短语, 12 学科 |
| 一般 | 4 |
| 农业 | 18 |
| 冶金 | 7 |
| 化学 | 19 |
| 医疗的 | 2 |
| 卫生保健 | 1 |
| 技术 | 1 |
| 核辐射 | 4 |
| 环境 | 2 |
| 生物学 | 3 |
| 电子产品 | 4 |
| 自然资源和野生动物保护 | 4 |