求翻译：部分日产“明治STEP”（850克）奶粉中检测出最高每千克30.8贝克勒尔（放射性活度的国际单位）的放射性核素 制造商：明治乳业 玉玉县工厂（春日部市） 罐底标注保质期 分别截至：是什么意思？

Part of the Nissan "Meiji STEP" (850 grams) was detected in the highest milk 30.8 Becquerel per kilogram (international unit of radioactivity) of radioactive nuclides Manufacturer: Meiji Milk Jade Factory, Saitama Prefecture (Kasukabe City) tank bottom shelf life were marked as:

Some Nissan "Meiji STEP milk" (850 grams) Detected 30.8 per 1000 grams bekkerel (Actvity international units of the radionuclide manufacturer: Meiji dairies Yuk-yuk-county factories (kasukabe city) tank warranty respectively marked as:

The partial daily productions “Meiji STEP” (850 grams) in the powdered milk examine the highest each kilogram 30.8 becquerels (radioactive activity international unit) radionuclide manufacturer: The Meiji dairying jade jade county factory (spring day department city) tank bottom labelling guarantees

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Some Nissan " Manage STEP " (850), milk power detect high each 30.8 Beckler radioactive nuclide manufacturer of (radioactive international unit of activity) most " tomorrow: Will manage the milk industry tomorrow Factory of jade county of jade (the department city of springtime) Mark in quality guar