即使速度变化范围很大，顶盖前细胞的放电频率也与速度无关，但却依赖速度在时间上的变化(加速度)。
In a broad range of speeds, the firing rates of these cells depend on the changes of speeds over time (acceleration) but not on speed per se.
近些年来，在软件开发的范围和速度，以及相关工具和语言上，已经有了巨大的变化。
In recent years, there have been significant changes in the scope and speed of software development, as well as in related tools and languages.
当然，在这个产业之中，变化的速度是突飞猛进的，它的范围和影响不断扩大。
The pace of change in that industry, of course, is accelerating, and its scope and impact are widening.
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