How to dynamically set the printer's paper size, paper margins and other property value?
如何动态设置打印机的纸张大小，纸边距等属性值？
Price is set in the marketplace, independent of margins and costs.
价格是由市场决定的，不受利润和成本的影响。
Side note: Short lines of text set in the margins.
边注：排在页边空白位上的短句。
Side note: Short lines of text set in the margins.
边注：排在页边空白位上的短句。
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