Different Ballast Water Exchange Methods for ships underway are described, including the Sequential Method, the Flow-through Method and the Dilution Method.

介绍了船舶在航更换压载水的各种方法，包括逐一更换法，注入顶出法和稀释法。

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Together with dominance of ion exchange processes in sorption indicated by sequential extraction analysis, it suggests an absence of specific sorption at sites of this kind.

凝灰岩和凝灰质砂的阳离子交换容量差异显著，说明离子交换作用仅发生在粘土矿物的表面，凝灰岩中蒙脱石的层间没有发生阳离子交换。

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Going by the copper price data on the London Metal Exchange, the average realized price of copper for Freeport is likely to be lower this quarter on a sequential and year-over-year basis.

FORBES: Wimpy Global Economy Will Drag On Freeport McMoRan's Earnings