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Turn on the machine and pack the ground coffee to the filter.
把浓缩咖啡机的电源打开、加水，准备好后，将咖啡粉放入滤器内。
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Clean screen pack, install a air filter at the entrance to the end;
清理过滤网，在入口端装一个空气滤清器；
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Clean screen pack, install a air filter at the entrance to the end;
清理过滤网，在入口端装一个空气滤清器；
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