Realizing steps of the technique are: 1. selecting cotton chemical fiber materials with a fiber length of 2-18 millimeter, carrying out wind-selection dust-removal process;

本技术实现步骤如下：1。选用纤维长 度为2-18毫米的棉、化学纤维材料，进行风选除尘处理；

youdao

Conventional cotton production relies heavily on chemical pesticides to control caterpillars and other insect pests.

常规棉生产严重依赖化学杀虫剂来防治毛虫和其他虫害。

youdao

It’s crafted from natural cotton and recycled paper layer and it doesn’t use any chemical ink or adhesives that are tough to recycle.

它是由天然棉和可循环的纸质层精制而成，它没有使用任何难以回收再利用的化学油墨或是制剂。

youdao

Mr. FOODY: And they found a fungus that produced a chemical called an enzyme that would break all sorts of fiber, cotton, clothes tents, down into sugar.

NPR: Canadian Dreams of Ethanol Distilled from Grass