同一净化同一车间为单位，每季度开展一次，分不同洁净级别的翻译：The same purification units in the same workshop, once every quarter, different levels of cleaning 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

The same purification same plant as a unit, to carry out a quarterly, at the different levels of cleanliness

The same purification units in the same workshop, once every quarter, different levels of cleaning

The identical purification identical workshop is a unit, each quarter develops one time, is divided the different pure rank

Same purification units, each with a workshop for a quarter, and sub-different clean level

The same purification units in the same workshop, once every quarter, different levels of cleaning