在此过程中，研究人员对受测者进行了精确的脑部扫描，以绘制出他们大脑的哪些部位被“点亮”，并对他们对一个笑话做出反应的时间进行了测定。
During the process they underwent sophisticated scans that mapped which parts of their brain were lighting up and timed how long it took them to respond to a joke.
用凯氏定氮法测定总氮含量，研究温度、消化时间及样品用量对野生竹红菌消化过程的影响。
The total nitrogen(N) content was determined with Kjeldahl to study the influences of temperature, digesting time and sample dosage on the course of digesting wild H.
该方法使样品消化过程中的硒损失大为减少，使络合萃取时间变短，提高了硒测定的精密度和准确度。
The method is able to decrease the loss of se in sample decomposition, shorten the time of complexing and extraction and raise accuracy of the determination of se.
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