An immediate response is vital when it is a question of bringing fast-moving machinery to a standstill in the shortest possible time.
立即反应是非常关键的，如使快速运动的机器在很短的可能时间内停顿所产生的问题。
The electrical machinery velocity modulation question has been one of automated domain quite important questions.
电机调速问题一直是自动化领域比较重要的问题之一。
If we are asked, for instance, whether machinery has really improved the world, the question strikes us as foolish: it has brought great changes and therefore great "progress."
这个问题会使我们的回答语无伦次：机器确实给世界带来了很大的变化，因此，它使世界取得了巨大的进步。
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