A fuel's tendency to form clinkers in a stove cannot be predicted by laboratory analysis both because of variations in the raw materials and the different burning conditions that affect the process.
燃料在炉内形成渣块的趋势是无法通过实验室分析预测的，因为不同的原材料和影不同燃烧条件变化都会影响过程。
The samples were sent for laboratory analysis at the Institut Pasteur, Dakar and confirmed by YF seroneutralization, a highly specific test for yellow fever.
样本送往达喀尔市巴斯德研究所进行实验室分析，并通过YF血清中和试验（一项高针对性黄热病检测方法）予以证实。
Samples are being sent abroad for diagnostic verification and further analysis by a WHO collaborating laboratory.
正在将样本送往国外，以便由世卫组织的一个合作实验室进行诊断性核实和进一步分析。
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