许多激光测量设备有显示最小和最大尺寸的设定；操作者必须只能沿着边缘点扫描。在测量对角线长度的时候这一点非常有用；
Many laser measuring devices have setting which shows minimum and maximum dimensions; the operator must merely scan the dot along an edge. This is helpful for taking diagonal measurements.
可通过测量压痕对角线长度，直接在LCD屏幕上显示硬度值。
By measuring the length of the diagonal indentation directly in the LCD screen hardness.
带el背光源的键盘特点：适用夜间或光线长时间比较黑暗的环境工作，能够长时间清晰地将文字、图案、键盘显示出来。
El backlight with the keyboard features: the application of light at night or dark environment relatively long time job, be able to clear a long time to language, design, the keyboard is displayed.
内置硬度计算器，可通过输入压痕对角线长度，直接在LCD屏幕上显示硬度值。
The inside places the degree of hardness calculator, can pass the importation press the diagonal line length, direct the manifestation degree of hardness is worth in LCD holding the act.
内置硬度计算器，可通过输入压痕对角线长度，直接在LCD屏幕上显示硬度值。
The inside places the degree of hardness calculator, can pass the importation press the diagonal line length, direct the manifestation degree of hardness is worth in LCD holding the act.
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