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Sudan black B
| stain
| sudan black B | |
| agric. | 苏丹黑 B |
| stain | |
| cloth. qual.cont. | 污迹 |
| econ. | 沾染; 颜料 |
| hydroel.st. | 凹坑 |
| interntl.trade. | 污染 |
| met. | 斑点; 生锈; 锈蚀 |
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| 苏丹黑 B | |||
| Sudan black B: 1 phrase in 1 subject |
| Nursing | 1 |
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