凹版印刷术用蚀刻后的板或圆筒印刷的方法；
The process of printing from an intaglio plate, etched according to a photographic image.
转筒烘干机也被称为滚筒干燥设备或圆筒烘干机，是矿业设备中应用最普通且广泛的一种干燥设备。
Rotary drum dryer, known as drum drying equipment or cylinder dryer, is the most common and widely used drying equipment.
圆筒状的根，在2厘米直径块根短，单或很少分枝。
Root cylindric, to 2 cm in diam. Caudex short, simple or rarely branched.
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