... pencil case 文具盒 pencil core 铅笔芯 pencil eraser 铅笔擦 ...
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pencil-core electrode 铅笔芯电极
Pencil core electrode 铅笔芯电极
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The utility model provides a trigonal pencil which consists of a pencil core and a pencil body, and is characterized in that the trigonal pencil body is arranged on the periphery of the pencil core.
本实用新型提供一种由铅笔芯和铅笔体组成的三棱 铅笔，其特征是：在铅笔芯外围设置一三棱柱形铅笔体。
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