气功内丹术术语。又称封固。丹药采取之后，当送归丹田封固温养，谓之封炉。为炼精化气四要诀之一。方法为归精气于丹田而以意守之。《道乡集》：“封炉者，即归土釜，恐其走失，以意而守，以目而照，先存后忘，合乎自然，即封炉之要诀也。”
对马钢二铁总厂3号高炉大修封炉、开炉操作进行了分析总结。
The banking and re-blowing operations in the annual overhaul of Masteel's No. 3 iron works are summarized and analyzed.
不必封盒，使转移者能看见微波炉、烤箱装臬后，割开一孔让人能看见馐内的物品。
Don't need to seal box, make transfer person can see after made, microwave oven, oven can cut a hole to let a person see the items in the versions.
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