fixed carbon的用法和樣例：
例句
- The biomass depends on the amount of carbon fixed by green plants and other producers.
生物量取決于綠色植物和其它生產(chǎn)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.
干燥無(wú)灰基固定碳含量增加，其著(zhù)火活化能逐漸升高，反應速率逐漸降低。
