The BTX in liquid production of pyrolysis coal appear at about 250℃, the BTX yield ratio improves with the increasing of temperature and reaches its maximal value at about 450℃-500℃, and fall to minimal value at about 700℃.
得到了以下主要结论:1.热解液相产物中BTX轻质芳烃组分在250℃左右生成,其后逐渐增大,到450℃-500℃左右达到最大值,接着到700℃左右产率降低到最小。
参考来源 - 黄土庙和锦界原煤及其溶胀煤的热解研究The mixture structure decrease yield ratio and improve ductility.
软的铁素体和相对硬的回火二次马氏体混合组织降低了钢的屈强比,提高了韧性。
参考来源 - 高强度船体结构用钢强韧化热处理工艺制度研究·2,447,543篇论文数据，部分数据来源于NoteExpress
But the tensile strength will be reduced a little, and the yield ratio increased.
但抗拉强度将随卷曲温度的降低而有少量损失，而屈强比提高。
The technological design makes use of symmetry and adopts the two mould process, which increases material yield ratio.
文章利用对称性，采用左右合模工艺，提高材料利用率。
The concepts of raw material utilization ratio, product yield ratio, product qualification ratio as well as the importance for the enterprise are discussed.
本文阐述了肉制品生产中原料利用率、产品出品率和产品合格率的概念及其在企业中的重要性。
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