scale bar短语⁶⁴⁶³³ 基本例句 定标线条 In the paper, the surveying principle is introduced, the system precision is analyzed and is validated by measuring a scale bar. 本文介绍了检测系统的原理，分析了检测系统的精度并以一标准尺对检测精度做了验证。 cnki Integrated circuit.5- point LED VU scale bar level meter driver. 集成电路。5点 LED电平表的 VU比例尺的驱动程序。 datasheetpdf