This method employs contact electrical discharge etching to remove wheel metal bond for wheel dressing.
它利用接触放电电蚀原理以达到去除砂轮的金属结合剂而修锐或整形砂轮。
They also come into contact with bond, a high-grade paper used for important documents.
他们也会接触到铜版纸，一种高级的重要文件用纸。
They also come into contact with bond, a high-grade paper used for important documents.
他们也会接触到铜版纸，一种高级的重要文件用纸。
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