The preparation of cyclopentadiene from dicyclopentadiene by liquid phase cracking method with the device of continuous reaction-rectification was studied.
本文研究了采用连续反应-精馏装置，由双环戊二烯进行液相热分解制备环戊二烯的工艺方法。
The gas phase oxidative cracking (GOC) processes of decalin and cyclohexane were investigated by using the quartz tube reactor at atmospheric pressure.
采用石英管反应器，在常压下研究了十氢萘和环己烷的气相氧化裂解(GOC)过程。
The results show that the cracking of the pump body resulted from the interaction of phase transformation and heat stress, as well as the poor quality of metallurgy.
结果表明：泵体裂纹为相变应力和热应力以及材质冶金质量不高共同作用而产生。
The FCC unit continuously circulates a fluidized zeolite catalyst that allows rapid cracking reactions to occur in the vapor phase.
在催化裂化装置一个不断循环流态化沸石催化剂允许快速裂解反应发生在气相。
The cracking in cold rolling was mainly caused by the large Fe particle and heterogeneous distribution of second phase.
在轧制中合金出现开裂的原因与存在较大的铁颗粒及第二相的分布不均匀有关。
The wrapping technology for oil phase materials and the addition of active material H stabilize hydrate reaction of the cracking agent.
产品中所采用的油相材料包覆技术和添加活性物质H，使该破碎剂的水化反应十分平稳。
Adding a grid to the dense phase of the regenerator is an effective method to raise the regenerating capacity of a heavy oil catalytic cracking unit.
再生器密相中增设格栅是提高重油催化裂化装置再生能力的有效措施。
The experimental result shows that the cracking resistance can be increased effectively as dual-phase structure existed in the layer consisting of lower bainite and lath martensite.
试验证明，当焊缝组织为下贝氏体及板条马氏体双相组织时，能有效地提高焊条的抗裂性能。
The experimental result shows that the cracking resistance can be increased effectively as dual-phase structure existed in the layer consisting of lower bainite and lath martensite.
试验证明，当焊缝组织为下贝氏体及板条马氏体双相组织时，能有效地提高焊条的抗裂性能。
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