本机运转稳定、噪音低、操作简便、使用安全，是实验室制作固体材料试样必备的设备之一。
This machine is of stable operation, low noise, convenient operation, safe use, laboratory of solid material sample is one of the necessary equipment.
在实验室条件下用圆盘试样模拟了钢轨的接触条件。
The contact condition of rail was simulated with twin - disk in laboratory.
通过多个实验表明，试样的均衡性、读数误差控制范围的正确确定以及样本菌量的正确估计，都是影响实验室菌落计数精密度控制的因素。
The results show that homogeneity of samples, correct determine of control range of reading errors and correct estimation of bacterium account are elements that affect accuracy of aerobic plate count.
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