人们驾车在等候加油的长龙里争抢位置，一些州也根据车牌号实行了单双号出行的规定，这一切都表明、能源富足的时代已经结束了。

As motorists scrambled for a place in line, in some states matching their license plates to the date on an odd-or-even system, the era of energy affluence ended.

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扼要介绍了欧洲（AECMA）规定采用的金属材料牌号九位字母与数字的表示方法，也介绍了金属材料状态的字母代号表示方法，并给出了一些示例。

The designation system of metallic materials in AECMA was introduced in this paper. The coding of conditions in metallic materials was also presented. And some examples were shown.

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