?耐火材料夹杂物
... 耐火层：refractory 耐火材料夹杂物：refractory inclusion 耐海水腐蚀焊条：seawater corrosion resistant steel electrode ...
The scientists used a scanning-electron microscope to view the panguite within a so-called ultra-refractory inclusion embedded within the meteorite.
MSN: 1969 fireball meteorite reveals new ancient mineral
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