虽然互联网是更广泛地提供比以往更快，人为的障碍威胁收缩增长。
While the internet is more widely available and faster than ever, artificial barriers threaten to constrict its growth.
您可以把速度理解为这个过程曲线的变化速率，或者是待完成工作增长或者收缩的速率。
You can think of velocity as the rate of change in the progress curve, or the rate of growth or shrinkage of the Backlog.
在信贷紧缩及出口低迷的时期，工业产出增长将收缩。
Industrial production growth will contract amid tight credit conditions and weaker exports.
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