求翻译：Ø 熔炼炉：外形规格与JDC相当，不带内衬，无放渣孔，侧部可开启；每炉加料前用高耐火度砂子制作炉筒内衬；是什么意思？

Ø furnace: Form Factor and JDC fairly, without lining, no residue put holes side can be opened; before each feeding with a high refractoriness furnace sand making furnace tube liner;

* Ø JDC smelleding furnace appearance with specifications without lining, rather, there is no standard chartered holes can be opened; each side, furnace charging former high-resistant degree sand production furnace and lining;

ø Smelting furnace: The contour specification and JDC quite, do not bring the inside lining, not puts the dregs hole, lateral may open; Before each stove feeding manufactures the stove tube inside lining with the high refractoriness sand;

Ø melting furnace: form factor with the JDC, with no lining, without tap hole, side shall be opened each furnace feeding before making furnace tube with high fire resistance of sand-lined;

ØSmelting furnace: The appearance specification is equal to JDC, does not take the inside lining, has not put the dreg hole, the side portion can be opened; Every stove makes the stove tube inside lining of high refractory degree of grit before feeding in raw material;