hard grinding stone 中文意思是什麼
hard grinding stone
解釋
硬磨石-
To cite but one example : the development around 1840 of metal rollers for grinding grain helped to open up huge new opportunities for wheat farmers in eastern europe and the united states, areas that produced mainly hard high - gluten grains that had proved difficult to mill with earlier stone - grinding technology
19世紀40年前後穀物碾磨業所發明的金屬磙筒為東歐和美國的麥農提供了大量的新機會。這些地區主要生產高粘度的實心穀物,用早期的石碾技術處理起來非常困難。 -
The research on the application of belt grinding in hard stone precision machining is summarized in this paper
本文對砂帶磨削技術在硬質石材加工中的應用研究進行綜述。 -
I would take the grinding stone, heat it in the fire and press it hard on the breasts, " moungang said
我會拿塊磨過的石子,把它放在火里加熱,然後再緊緊地壓在胸上。
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