The present invention relates to hydrocarbon hydrocracking process including the steps of loading catalyst into the reactor, activating, reaction, etc.
本发明涉及一种加氢裂化工艺方法。本发明加氢裂化工艺方法包括将催化 剂装入反应器、活化和反应等过程。
The invention provides a reliable rotor commutator welding method, including the steps: the coil end heads of the upper coil and the lower coil are welded through the argon-arc welding;
本发明提供一种焊接可靠的转子换向器焊接方法，包括如下步骤：将上 层线圈与下层线圈的绕组端头通过氩弧焊焊接成一体；
It is prepared through a powder metallurgy process including the steps of compounding material, mixing, pressing blank, pre-sintering and sintering to form the alloy.
本发明合金制备方法：采用粉末冶金方法即配料、混料压坯、预结、烧结制成合金。
It is prepared through a powder metallurgy process including the steps of compounding material, mixing, pressing blank, pre-sintering and sintering to form the alloy.
本发明合金制备方法：采用粉末冶金方法即配料、混料压坯、预结、烧结制成合金。
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