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71. | hexadecadienedioic acid |
| 十六碳二烯二酸 |
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72. | dithio-bis-propylene sulfonic acid sodium salt |
| 聚二硫二丙磺酸钠 |
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73. | dipropyl sebacate |
| 癸二酸二丙酯 |
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74. | sodium stibocaptate |
| 二巯丁二锑钠 |
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75. | dichlorodiethyl sulfide |
| 二氯二乙硫醚 |
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76. | MDI(4,4'-diphenylmethane diisocyanate) |
| -二苯基甲烷二异氰酸酯 |
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77. | potassium dihydrogen hypophosphate |
| 连二磷酸二氢二钾 |
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78. | solstitial colure |
| 二至经线;二至圈 |
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79. | maleic acid disodium salt |
| 顺丁烯二酸二钠 |
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80. | tolane dibromide |
| 二溴化二苯乙炔 |
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