The spinning steps of the fancy yarn are as follows: (1) the raw material fiber of the core yarn, the decorative yarn and the fixed yarn are respectively processed into roved yarn;

该花式纱的纺制步骤为： ①将所述芯纱、饰纱、固纱的原料纤维分别单独加工成粗纱；

youdao

The plastic optical fiber's fabricating process from raw material synthesis to fiber drawing was studied.

研究了塑料光纤从材料合成到光纤成丝的整个工艺过程。

youdao

The spinning of coal tar pitch raw material is key procedure of shaping in manufacturing carbon fiber.

煤沥青原料的纺丝，是碳纤维制造过程中加工成型的关键步骤。

youdao

Analysts said that Futong achieved a breakthrough in the manufacturing of optical fiber preform, the core raw material for optical fiber production, and is the first enterprise in China that can make this material with the latest all-synthesis technology.

FORBES: Technology Breakthrough Makes Chinese Fiber Optics Entrepreneur A New Billionaire