单词：fixed carbon
fixed carbon的用法和样例：
例句
- The biomass depends on the amount of carbon fixed by green plants and other producers.生物量取决于绿色植物和其它生产者所固定碳的量。
- With the carbon content of dry ash-free basis increasing, the ignition activation energy increase and the reaction rate fall.干燥无灰基固定碳含量增加，其着火活化能逐渐升高，反应速率逐渐降低。
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