According to sales data, during the past 35 years the returns for high-end stringed instruments have vastly exceeded the performance of American stocks (see chart).

据销售数据来看，过去35年里，高端弦乐器的回报率远远超过了美国股市的表现(如图)。

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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.

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。

youdao

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.

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。

youdao