without mandrel

• 无芯模

without mandrel的用法和样例：

例句

1. Filament winding is a production technique for composite structures, in which impregnated fiber bundles are guided through a pay-out eye on a rotating mandrel.
   纤维缠绕是一种制造复合材料产品的加工技术，预浸有树脂的连续纤维束在吐丝嘴控制下沿规定路径铺设在芯模上。