The seed preparation is a key step in ferric yellow production.

晶种制备是铁黄生产的关键步骤。

youdao

After adding the crystal change promoter a, the content of FeOOH in iron red was decreased and the temperature of crystal seed preparation was properly raised.

加入晶型转化促进剂a可以减少铁红中水合铁含量，同时可适当提高晶种制备的温度。

youdao

The invention discloses a rape drought-resistance seed-soaking agent and a preparation method thereof.

本发明公开了一种油菜抗旱浸种剂及其制备方法。

youdao

He discovered that seeds or spores could grow if the seed could develop in a special preparation.

VOA: special.2010.04.06

The people of Myanmar are also buying planting tools and seed in preparation for the monsoon rains that typically come in May, Sitko said.

CNN: A year after cyclone, a girl remembers

Knapp gave him a list of simple innovations to follow things like deeper plowing and better soil preparation, the use of only the best seed, the liberal application of fertilizer, and more thorough cultivation to remove weeds and aerate the soil around the plants.

NEWYORKER: Testing, Testing