Older power stations have simply placed a grill across the inlet pipes, filtering out fish, which are killed in the process.
* @param {number} k 要移除的数字位数
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帕特尔指出,“美国目前国内钪产量为零,也没有在中国以外已经投产运转的替代来源”,现有库存恐怕以“月”为单位计算,而非“年”。
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