An industrial catalyst from laboratory to commercial production, usually goes through three consecutive stages, namely, laboratory screening, pilot plant test and full-scall plant test.

催化剂从实验室研制到进行工业生产，一般要经过实验室初步筛选、中间试验、工业装置试验三个阶段。

youdao

The pilot and demonstration are done, and the commercial production facility is under construction now in Pennsylvania the last time I checked.

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