Power - driven vehicles ; graphic symbols for tachographs 机动车辆.自记式转速计用图形符号
2.
Flexible shafts for speedometers and tachographs of automobiles 汽车速度计和转速表软轴
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Specification for circular electronic tachographs for road vehicles 道路车辆圆形电子转速表
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Tachographs for automobiles 汽车自记式转速计
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State of the railway vehicles - control and instrumentation technology - part 207 - 11 : tachograph and recording devices 铁路车辆状况.控制和测量仪表技术.第207 - 11部分:转速
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To make commercial vehicles cost efficient , reliable and safer , the company develops products and services such as tachographs and onboard network electronics 公司还致力于开发诸如行车记录设备和车载信息网络的技术，这些技术对提高商用车车队的运营效率带来极大的支持。
