Current density low, sedimentary speed is slow, prone to Yin and Yang, the luster of the poor, face Current density too high, convex department easily burnt.

电流密度低，沉积速度慢，容易出现阴阳面，光泽欠佳；电流密度过高，凸部易烧焦。

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The quality is a burnt magnesia spinel brick made from fused magnesia, low iron sintered magnesia and fused hercynite. This synthetic hercynite is a patent by RHI Refractories.

它由电熔镁砂、低铁烧结镁砂和电熔铁铝尖晶石制成的烧结镁铁尖晶石砖，这种人工合成的铁铝尖晶石是RHI奥镁公司的专利。

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Quasi homogeneous charge compression ignition (QHCCI) combustion may be with low emissions, especially for soot and NO_X, according as the most fuel which is pre-mixed is lean burnt.

准均质充量压缩点火燃烧(QHCCI)方式占总燃料多数的预混合燃料以稀薄燃烧完成，故可能有很低的排放，尤其是碳烟和氮氧化物。

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Dr Brain found that the burnt bones from Swartkrans could be sorted into types that had been burnt at low and high temperatures.

BBC: NEWS | Science/Nature | Bones hint at first use of fire