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[今日口语] She is in a quandary about which university to choose.

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drilling mud

钻井泥浆

同：	[n.] drilling fluid

In drilling an oil well, mud is used to lubricate the cutting bit.
钻油井时，泥浆被用来润滑钻头。收藏
Polysaccharides such as scleroglucan are used by the oil industry as drilling mud additives.
多糖(例如硬葡聚糖)用于石油工业作为钻井泥浆添加剂收藏

名词解释：

a mixture of clays and chemicals and water; pumped down the drill pipe to lubricate and cool the drilling bit and to flush out the cuttings and to strengthen the sides of the hole
[同] drilling fluid, drilling mud

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