注：当对正常产品采用大容量或加强绝缘时，应在产品型号字母后面加“J”或“Q”表示。
Attention: when uses large capacity or the reinforced insulation to the normal product, should add "J" or "Q" behind the product model letter for expressing.
继电器入厂检查及使用中应轻拿轻放，防止跌落影响参数。入厂作破坏性检查的产品要与正常产品严格区分标识，不得装机使用。
Relay incoming inspection should be light-light, do the destructive test of products must be consistent with normal goods isolated and labeled, shall not be used.
该产品虽然在当时是独一无二的，但是价格昂贵，机身沉重；此外，它最重要一些功能也不能正常运行。
The product, though unique at the time, was expensive and heavy; besides, some of its most important features didn't work properly.
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