单词 | coal dust |
释义 | coal dust At close range she smelled of fried fish and coal dust. Burning Bright (2007) Pluschow disguised himself as a grubby docker using coal dust and boot polish. The Sun (2011) Nonionic surfactant sprays performed well in coal dust capture in many of the tested conditions. 2017, 'Effects of Spray Surfactant and Particle Charge on Respirable Coal Dust Capture', Safety and Health at Work |
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