starch dust

例句：

1. 1. The farmer used to use this starch dust to clean his fields.
   这位农民过去用这种淀粉粉尘来清洁他的田地。
2. 2. The engineer found the starch dust on the floor and cleaned it up.
   工程师在地板上发现了淀粉粉尘，并把它清理干净了。
3. 3. The chemical factory produces starch dust, which is then used for industrial purposes.
   这家化学工厂生产淀粉粉尘，然后用于工业用途。