helical ribbon
常见例句
- The invention relates to a double helical ribbon pipe type reactor, which is particularly suitable for preparing high-performance polyacrylonitrile-based carbon fiber spinning solution.
本发明涉及一种双螺带管式反应器，尤其适用于高性能聚丙烯腈基碳纤维纺丝液制备。
ip.com 返回 helical ribbon