目筛下的石灰石颗粒的存在不利于玻璃的澄清。
The lower limit of limestone size should be larger than minus 120 meshes.
黄白相间的阳光从我们头顶密密的紫藤的间隙筛下来。
Yellow and white drops of sun splashed through the wisteria canopy above us.
介绍了铁合金生产以半焦煤代替部分冶金筛下焦炭作还原剂的生产情况和出现的问题。
It introduces the production situation and problems which coke is partly replaced by semicoke coal as reductant in ferroalloy production.
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