Also included is a thermometer hole which thrills through the furnace shell to extend in the refractory layer.

还包括测温孔，测温孔穿过炉壳伸入耐火层内。

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Also included is a thermometer hole which thrills through the furnace shell to extend in the refractory layer.

还包括测温孔，测温孔穿过炉壳伸入耐火层内。

youdao