The layout arrangement and design of purlin is very important to the safety and economy of light gauge steel structures.

轻型建筑钢结构的檩条布置和设计，对整体结构的安全性和经济性有十分重要的意义。

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America's economy is needlessly vulnerable, thanks to its addiction to oil (and light taxation of it).

美国经济并不那么容易崩溃，这要感谢它对石油的依赖(以及宽松的税率)。

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The bus Train, a dual-mode vehicle that has the versatility of a bus, the speed of light rail and fuel economy vastly better than either.

公交火车，一种双重模式的机动车，即拥有公交车的功能，也具有轻轨的速度，甚至是比两者都还节省燃油。

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From 2006 to 2010 the average fuel economy of new cars and light trucks rose from 25.8 miles per gallon of petrol to 29.2.

ECONOMIST: Bad news for more than motorists

Key parts of the bill include new fuel economy standards for cars and light trucks, and new requirements to increase the use of ethanol and other biofuels.

NPR: Energy Law Leaves Out Wind, Solar Tax Credits

The yen weakened against all majors as risk appetite grew across the globe with the Bank of Japan looking the least likely to normalize policy in light of the recent damage to its economy.

FORBES: IB FX Brief: Positive Jobs Report Boosts Dollar, Risk Appetite Grows Friday