Letterpress involves a direct contact between the type and other items being printed and paper.

凸版印刷是一种字模或其他母体与纸张直接接触的印刷工艺。

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" In compliance with requirement of safety technique Type B " must be marked on the label of products with direct contact to skin.

直接接触皮肤的产品在标识标注上应标明“符合B类安全技术要求”；

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The condenser is of the direct-contact type, since the steam does not have to be condensed separately from cooling water and returned to a boiler.

凝汽器为直接接触式，因蒸汽不必与冷却水隔开凝结并返回至锅炉。

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The condenser is of the direct-contact type, since the steam does not have to be condensed separately from cooling water and returned to a boiler.

凝汽器为直接接触式，因蒸汽不必与冷却水隔开凝结并返回至锅炉。

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