学术与科学:

“RD&D”是“Research, development and Demonstration”

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“CX”是“Clock Signal”的缩写，意思是“时钟信号”

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“DNM”是“Diameter Nominal”的缩写，意思是“名义直径”

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“HUCOM”是“Hadramout University College of Medicine

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“IVO”是“Inlet Valve Opening”的缩写，意思是“进气门开

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“EVC”是“Exhaust Valve Closing”的缩写，意思是“排气门

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“IVC”是“Inlet Valve Closing”的缩写，意思是“进气门关

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“TDC”是“Top Dead Centre”的缩写，意思是“上死点”

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“BDC”是“Bottom Dead Centre”的缩写，意思是“下止点”

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“CTBUH”是“Council on Tall Buildings and Urban

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