The history of energy extraction has been marked by a number of disasters that have driven change: Piper Alpha, Three Mile Island, Chernobyl, and the Exxon Valdez to name but a few.
能源开采的历史一向以一系列推动变化的灾难为里程碑：帕玻尔·阿尔法钻井平台爆炸、三里岛核事故、切尔诺贝利核泄漏事故，以及埃克森·瓦尔迪兹号溢油事故。
Extroverts may be viewed as bold, confident, loud and full of energy. They are often called "alpha," meaning a leader of the group.
外向的人可能被视为大胆、自信、吵闹并充满活力。他们通常被称之为阿尔法，意思是人群的领导者。
To determine how strong the alpha constant was in any given spot, the scientists measured the frequency at which electrons in various atoms would hop from one energy level to the next.
为了确定在任一给出的位置的alpha常数的强度，科学家们测量了不同原子的电子从一个能级跃迁到另一能级的频率。
Ionized by energetic starlight, a hydrogen atom emits the characteristic red H-alpha light as its single electron is recaptured and transitions to lower energy states.
氢原子被高能的恒星光离子化之后，在它的单个电子重新被捕获并跃迁到低能级上时会放出典型的红色h - alpha光。
Alpha Natural Resources and Massey Energy announced a merger in an $8.5 billion deal that creates the world’s third-biggest supplier of metallurgical coal to steelmakers.
阿尔法自然资源公司和梅西能源公司宣布将通过一次85亿美元的交易实现合并，成为向钢铁制造商提供冶金用煤的世界第三大供应商。
Nuclear energy. fuel cycle technology. waste. standard method for testing the long term alpha irradiation stability of solidified high level radioactive waste forms.
核能。燃料循环技术。废料。高放射性固化废料形态长期辐射稳定性的标准测试方法。
Nuclear energy. fuel cycle technology. waste. standard method for testing the long term alpha irradiation stability of solidified high level radioactive waste forms.
核能。燃料循环技术。废料。高放射性固化废料形态长期辐射稳定性的标准测试方法。
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