Open the smoke chamber of boiler; check the seal patch and smoke dirt to decide if it needs to clean up or replacement.

打开锅炉的前后烟箱门，检查密封垫片及烟垢，以决定是否更换和清理，同时检修浇注的耐火混凝土和密封石棉垫（绳）；

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The infrared extinction performance of carbon nanofibers used as smoke interference materials was studied within a smoke chamber.

利用烟幕箱测试分析了纳米碳纤维作为烟幕干扰材料的红外消光性能。

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The smoke performance was studied in smoke chamber. The detecting ability of IR thermal imaging is decreased with the smoke mass concentration increasing.

烟幕箱实验表明，红外热像的探测能力随红外烟幕质量浓度的增加而降低。

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One of the first things the bar installed in its small kitchen was a bespoke Cookshack smoker imported from the U.S., which also cold smokes a process whereby smoke is cooled as it is piped from a fire chamber, infusing the food with a smoky flavor without cooking it.

WSJ: The Latest Barbecues Are Smoking