versatile precision-rolling mill
... vernier micrometer游标千分尺 versatile precision-rolling mill多品种精密轧机 versatility多用性、通用性、变通性、适应性、适合性 ...
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versatile precision rolling mill
多品种精密轧机 versatile precision rolling mill; versatile precision-rolling mill 收集到的许多品系 many of the strains in the collection .
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