临时封头
Temporary head
以上为机器翻译结果，长、整句建议使用 人工翻译 。
对焦炭塔上部壳体和球形封头的减薄原因进行了简要分析，提出了临时修复措施。
The reason of thinning out of the upper shell and spherical head for coke tower was analyzed briefly. The temporary repair measure was proposed.
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