You find that with any existing simple "noise-meter", vehicles which are judged to be equally noisy may show considerable difference on the meter.
你会发现，使用任何现有的简单“噪音表”，被判定为发出同样大小噪音的车辆，在表上可能显示出相当大的差异。
Interest is also growing in other devices that go beyond a simple fuel-economy meter and provide more information about drivers' behaviour.
现在人们不仅仅局限于简单的节油型设备，对于其他的一些能够提供更多司机行为信息的设备，人们也很感兴趣。
The implemented electric meter has simple structure, high measurement precision and reliability.
所研制的电表结构简单、计量精度高、抗干扰性好。
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