Plotted on a graph, the history of clean-energy production in the United States resembles the blade of a saw, rising and falling each time subsidies came and went.
从图上看，美国清洁能源的生产的历史就像是锯齿，随着补贴的来去而起落。
The number of the intersection points which some conjugate states of M sequence are in the state-graph of M sequence has closely relation to the cut-joining method of M sequence .
序列中的共轭状态在M序列的状态图中的交点个数与M序列的剪接构造法有密切的关系。
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