Natural rubber is one of the four main rural materials for industry.
天然橡胶为四大工业原料之一，也是极为重要的战略物资。
Main grade for milling of steel and long-chipping iron materials.
对钢和长切屑的铁进行铣削的主要牌号。
ObjectiveUsing brown rice as main raw materials, the process technology for producing rice-tofu was studied.
目的以糙米为主要原料，研究了米豆腐的制备工艺。
ObjectiveUsing brown rice as main raw materials, the process technology for producing rice-tofu was studied.
目的以糙米为主要原料，研究了米豆腐的制备工艺。
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