保守
发表于 2025-3-28 15:07:17
Energy Use,ources of energy vary widely in different countries. Some countries rely heavily on oil, others on natural gas, and others on hydroelectricity..Naturally, larger countries tend to consume more energy than smaller ones. But energy consumption per capita is high in several small countries, including Q
prosperity
发表于 2025-3-28 22:42:05
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遗留之物
发表于 2025-3-28 23:52:58
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Agronomy
发表于 2025-3-29 07:06:55
Coal,ontent. Subbituminous coal, bituminous coal, and anthracite have higher heat contents with anthracite being the highest..The USA, Russia, Australia, China, and India all have large reserves of coal. The USA, Russia, and Australia all export coal, as do Indonesia, South Africa, and Colombia. Despite
昏睡中
发表于 2025-3-29 10:54:29
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态度暖昧
发表于 2025-3-29 11:24:02
Petrochemicals,f the world’s oil production and 8% of the world’s gas production are used to make petrochemicals. Compounds from oil and gas serve two purposes: they are the feedstock used to create the chemical products, and they provide energy needed for the transformation from feedstock to petrochemicals. Coal