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Coal being a solid must be distributed mainly by rail or water.
煤是固体，必须主要依靠铁路和水路来运输。
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Coal water slurry is a complicated solid-liquid dispersion.
水煤浆是一种复杂的固-液分散体系。
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Coal water slurry is a complicated solid-liquid dispersion.
水煤浆是一种复杂的固-液分散体系。
youdao