不管用酸性法还是碱性法，碳，锰及硅容易除去。除去磷和硫则需要特殊条件，这些条件只有碱性法才能满足。
Carbon, manganese and silicon can be removed easily by any of the processes, acid or basic. The removal of phosphorus and sulphur requires special conditions that only basic processes can meet.
不管用酸性法还是碱性法，碳，锰及硅容易除去。除去磷和硫则需要特殊条件，这些条件只有碱性法才能满足。
Carbon, manganese and silicon can be removed easily by any of the processes, acid or basic. The removal of phosphorus and sulphur requires special conditions that only basic processes can meet.
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