产品名称 锡珠 主要用途 IC封装专用材料。如:DIP、SOJ、SOP、TSOP、QFP，BGA，CSP等封装工艺。 性 状
等皮肤愈合后，这些锡珠看上去就像一串葡萄一样，还会发出叮叮当当的响声，在当地被视为美妙的音乐。
After the skin heals, the beads look like a cluster of grapes, and make a tinkling sound that is regarded as music.
这个雪人由英国国家物理实验室制造，使用的材料是通常用来校准电子显微镜透镜的锡珠。
Made of two tiny tin beads usually used to calibrate electron microscope lenses, the snowman was built by the National Physical Laboratory.
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