nh3是一种重要的化工原料也是造成水体富营养化及氮氧化物污染的重要因素之一.1n2和h2以物质的量之比为13在不同温度和压强下�生反应 Template




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tomskinh3是一种重要的化工原料也是造成水体富营养化及氮氧化物污染的重要因素之一.1n2和h2以物质的量之比为13在不同温度和压强下�生反应 coloring