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Engineering
The discipline, art, skill and profession of applying scientific knowledge and principles to the design and manufacturing of machines, structures, devices, systems, materials and processes.
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Legal services; DNA forensics
岩屑、 swabbings 等，從相鄰不染色材料。控制項示例是源的材料的已知，想必是源的無公害期間犯罪 （例如，要在實驗室測試中使用，以確保樣品源的存放于其的表面並不干擾測試的樣本。為例，當從地毯上收集的血跡，必須收集到一段不染色地毯）。控制項示例應採取旁邊正在收集生物汙跡。 ...
