This paper reported the results of laboratory study and industrial development of the new type non chrome ferrite W-201 catalyst for n-butene oxidative dehydrogenation to butadiene.
本文报导了丁烯氧化脱氢制丁二烯新型无铬铁系w - 201催化剂的实验室研究和工业生产结果。
The development and the experimental result of W alloy welding electrode are expounded in present paper.
本文阐述了钨合金焊条的研制和试验结果。
The research on W-band coherent frequency synthesizers is mainly about scheme chosen, development and test of the components, which constitute coherent frequency synthesizers.
W波段相参频率源技术研究中,主要是实现相参频率源所需要的各个模块方案的选取,各个模块的设计、加工与测试。
The split voice, the development of what you could say is that racial double consciousness that W. E. B. Du Bois talks about, that double consciousness of the racial reality, is manifested in that split in the narrative.
在双重叙述中,双重语气表现了出来,这就是W。,E。,B,Du,Bois所说的,种族双重意识,的发展。
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