速度降低,如机器老化或为了“安全”故意降低速度。
Reduced speed = deterioration, or willful reduction of speed to be "safe"
虽然切换会降低速度,但在给定时间您通常仅使用其中之一或其中之二。
Even if it is slow to switch between them, you are probably working in only one or two at any given time.
阿肯色和北达科他州的参议员们质问,为什么这个最低速度是这么的小。
Senators from Arkansas and North Dakota have questioned why the minimum is so low.
A much smaller peak, a much less rapid decline after the peak occurs.
一个较低的峰值,最大值出现后下降速度也较慢
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