这个函数的第一个参数往往是 (syntax k)，这是一个小公式，帮助语法转换器获得正确的上下文。

The first parameter to this function is usually (syntax k) which is a little magic formula that helps the syntax converter get the context correct.

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最后，对这种模-数转换器的应用作了说明，并用实验验证了估算测量速度公式的正确性。

Finally, it gives the explanation about the applications of this converter and proves the correctness of the formula estimating the measured speed by experiment.

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