系统由超声波驱动器、换能器、变幅杆、拉丝模、拉伸机等组成，通过对黄铜丝的拉拔实验，考察了超声振动对拉拔力和丝的表面质量的影响。
Through a series of drawing experiments of brass wires, the effects of ultrasonic vibration on drawing force and surface quality of the wires were discussed.
丝管是通过将蜡模浸入水化的丝蛋白溶液中制成的，有许多组织工程应用，如血管移植和神经导引。
Silk tubes, made by dipping a wax mold in aqueous silk solution, have a number of tissue engineering applications like blood vessel grafts and nerve guides.
模口的形状决定了挤出塑料产品的型状，如制尼龙绳用的纤维丝或塑料管。
The shape of the die decides the shape of the extruded plastic-a fibre, perhaps, for use in nylon thread, or a tube.
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