With the support of the National 863 Program, the research group of “2.…
The mobile emergency power supply vehicle (hereinafte…
WF32 precision colorimeter 8mm caliber version is a general-purpos…
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From the perspective of foreign trade companies, the paper a…
The design and numerical simulation of the rotor profile of the wide-angle rotor compress…
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In nature, water always flows from high to low, the heat is always transferred …