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8 magg 1980 anni - 1980年5月8日上海第二冶炼厂硅单晶车间生产出国内最大最重的直径 157 毫米、重377公斤的硅多晶锭。

Descrizione:

1980年5月8日上海第二冶炼厂硅单晶车间生产出国内最大最重的直径 157 毫米、重377公斤的硅多晶锭。

Aggiunto al nastro di tempo:

工业大事年表

2 set 2023

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688

Data:

8 magg 1980 anni

Adesso

~ 45 years ago

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