用桑蚕茧或柞蚕茧作原料制成生丝或柞蚕丝的工艺过程。
他发明了制丝的新方法。
该机的研制成功，填补了我国制丝业副产品干燥设备的一项空白，为实现我国制丝业副产品干燥作业连续化、自动化创造了有利条件。
This success fills up a gap in by-product drying in silk reeling industry and lays down a sound foundation for a continuous and automatic drying process.
一种滚筒式真空加料机，属于烟草制丝自动化设备技术领域。
The invention relates to a drum type vacuum charging machine, which belongs to the technical field of tobacco primary processing automation devices.
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