与此同时，存在由于热应力产生的微裂纹和稀土元素偏聚烧损后产生的孔洞。
The thermal stress and the burning loss of rare earth elements segregate at grain boundaries resulting in the presence of micro-cracks and micro-holes.
与此同时，存在由于热应力产生的微裂纹和稀土元素偏聚烧损后产生的孔洞。
The thermal stress and the burning loss of rare earth elements segregate at grain boundaries resulting in the presence of micro-cracks and micro-holes.
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