常見例句雙語例句Anshan-type low-grade hematite ore; Classification; Gravity concentration; Magnetic separation; Reverse flotation; Steel ball system of grinding;鞍山式貧赤鐵礦石； 分級(jí)； 重選； 磁選； 反浮選； 磨礦鋼球制度；Grinding burn and the harm during the hard grinding of steel ball are elaborated, the purpose is to control the loss of production process and decrease the cost of product.闡述鋼球硬磨加工中產(chǎn)生的磨削燒傷并探討磨削燒傷的危害性，目的是控制產(chǎn)品加工中的損耗，降低產(chǎn)品成本。The drain valve is opened or closed by taking advantage of the change of liquid level of condensate water with the high-precision grinding stainless steel hollow float ball in the valve cavity.利用高精度研磨不銹鋼空心浮球在閥腔內(nèi)隨著凝結(jié)水的液位變化開啟或關(guān)閉閥門。 返回 steel grinding ball