英语语法分析

Some in the industry apparently do not want to pay for CFC substitutes, which can run five times the cost of CFC's.

一些业内人士显然不想购买氟氯化碳替代品，因为后者的价格是氟氯化碳的5倍。

Unfortunately, you must carry the necessary equipment with you, since it's all but impossible to find natural substitutes.

不幸的是，你必须随身携带必要的设备，因为几乎不可能找到天然的替代品。

Unfortunately, the current low prices for oil, gas, and coal may provide little incentive for research to find even cheaper substitutes for those fuels.

不幸的是，目前石油、天然气和煤炭的低价格可能无法激励研究人员去寻找更便宜的那些燃料的替代品。