在不使用运算放大器的情况下，直接利用晶体三极管与数字式电流表测出扩散电流，可以得到较为准确的玻尔兹曼常量。

The diffusion current is measured using transistor and digital ammeter instead of operational amplifiers, and the Boltzmann constant is obtained accurately.

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D代 表2014年海南三亚环境下不同基因型BC3F2：3家系间的穗行数差异比较， * * 在代表水平P< 0.01差异极显著；

D represents the KRN comparison of different genotypes of BC3F2:3 family in 2014 Hainan, * * represents significant difference at P< 0.01;

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