单词:gallon-octane
单词:gallon-octane 相关文章
What Do Octane Numbers Mean? At the gas pump, you have a choice of octane numbers. 87? 93? Whats the difference? To explain octane numbers, lets take an imaginative leap into the internal combustion engine of a car. Inside the cylinders are combustio
This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? On May 19th, President Obama announced a new federal gas mileage standard. He wants the country's entire car and light truck fleet to average 35.5 miles per gallon by 20
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Allison wanted to eat breakfast. She took a bowl from the sink. She opened the cabinet. There were 10 different cereal boxes. She got her favorite cereal box. It was the sugary kind. She poured the cereal into her bowl. She opened the refrigerator. S
WELLINGTON, March 23 (Xinhua) -- Fuel prices are at their highest level in nearly three years in New Zealand on Wednesday after the four main oil companies increased their prices by 3 cents. Shell, Caltex, BP and Mobil have raised the price of 91 oct