很多人竟然不知道如何正确使用开罐器！别担心，这篇文章正是写给这些需要本文的人的。
步骤
方法 1 的 3:
手动开罐器
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1
将开罐器放在罐子的顶部。根据不同的开罐器，有些需要把齿放在罐口上和下方的嵌齿夹紧，或者把齿放在罐口外侧和内侧的嵌齿夹紧。有些机型的齿是盘型刃片。
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2
扭动手柄前先确保开罐器和罐口顶紧。
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3
扭动把手，转过一圈。
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4
搞定，享用罐头吧。
方法 2 的 3:
电动开罐器
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1
把开罐器的襟翼提起来，把罐子放在下面。
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2
罐子会旋转并被剖开。有些开罐器可能需要你按住罐子。
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3
磁铁会吸住切下的金属罐盖，并把它提起来。
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4
取下盖子。
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5
搞定。
方法 3 的 3:
老式开罐器
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1
小心把开罐器的刃部，垂直放在罐子的盖子边缘，用力按下。刃部会切下。小心如果你不按紧罐子或开罐器的刃部不够锋利的话，刃部可能会滑向旁边弄伤你。
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2
保持刃部向下插入到你刚才做的洞里面，这一次尽可能平行以接触到罐子的边缘。
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3
把刃片推下来轻轻地打开另一个洞。
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4
把开罐器上的槽对准罐子边缘上凸起的薄边。
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5
上下切割，环形推进。
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6
盖子边缘会很锋利, 手不要碰。
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7
吃吧。
警告
- 小心尖锐物品。开罐器的刃部和罐子的盖子都可能割到你。