出租汽车计价器是一种出租汽车专用的计量仪器，国家将其列为实行强制检定的工作计量器具。
The taximeter is a kind of special measure built in a taxi. Under state policy, it is listed in those measures that are forcing to be detected.
结合工作实践对绘制计量器具的量值溯源图进行了一些尝试，提出了一些基本做法。
Connecting with working practice, this paper tries to draw up the quantity value source-tracing chart of the measuring instruments, and puts forward some concrete methods.
文章根据从事长度计量器具检定和修理的工作实践，总结了千分表示值超差的原因和修理方法。
Base on the working practice of length measurement implements checking and fixing, this paper summarize the indication error reason of dial indicator and the fixing measure.
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