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electric-eye method
A method of finding large diamonds in which the dry crushed ore is passed in a thin layer on a moving belt through a band of intense polarized light, which, if reflected from a large diamond, actuates a photoelectric cell, which calls attention to the large diamond.
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
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创建者
- ed.young
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(Milwaukee, United States)