能源行业正处于关键时刻，我们必须拥抱创新，以满足世界日益增长的能源需求，同时应对环境挑战。

I find I'm so excited. I can barely sit still or hold a thought in my head. I think it the excitement only a free man can feel, a free man at the start of a long journey whose conclusion is uncertain. I hope I can make it across the border.I hope the Pacific is as blue as it has been in my dreams. I hope to see my friend, and shake his hand. I hope.

优化是在给定约束条件下做出最佳选择的艺术。