项目组合管理的规程和桥梁建造或银的锻造的规程都是规程。
This is as true for portfolio management as a discipline as it is for bridge construction or silver smithing, which are also disciplines.
蛋白质是生命的建造材料，它们是长分子链，只有在这些分子被组合成最终的三维形态时才可正常运作。
Proteins, which are the building blocks of life, come in long chains of molecules that work properly only once they have folded into their final, three-dimensional shape.
但是，即便此次事故导致核电站建造成本上升，电力生产的经济学青睐的仍是包括核电在内的多种能源组合。
But even if nuclear power plant construction costs rise as a result of this incident, the economics of power generation still favor a mix of energy sources that include nuclear.
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