请翻译请注意我们于5月11日和12日前往工厂进行了查勘我们了解了工厂各种产品得率、能耗的计量统计方式。还监督了现场取样
On May 11th and 12th, we visited the factory for a survey. We learned about the measurement and statistical methods for the yield and energy consumption of various products in the factory. We also supervised the on-site sampling.
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