The results show that the boiler has a very stable operation without oil supporting under 50% load.
改后试验结果较好，锅炉可在5 0 %负荷下全脱油稳定燃烧。
Among features, the pump's elastomeric diaphragm promotes high efficiency and delivers oil-free operation without any risk of contaminating the sampled gas.
所有这些功能，该泵的弹性膜片促进高效率，并提供无任何污染取样气体的风险的无油操作。
The utility model discloses a flare can cover which enables coal oil feeding to the bottle without opening the bottle lid. The operation is convenient, quick and clean.
本实用新型公开了一种火把罐盖，它不须拧开盖身、瓶盖就能方便、快捷、干净地向瓶内添加燃料煤油。
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