单层及多层丝挤出生产线的英文

extrusion lines for mono- and multifilaments

• 单层:    single layer; mono ...
• 及:    reach; come up to
• 多层:    multichamber; mult ...
• 丝:    silk
• 挤出:    squeeze out; force ...
• 生产线:    beltline; producti ...