On the other hand, in 1968 Dietrich Braess, a German operations researcher, discovered that adding routes to an already congested network will only slow it down.
另一方面，1968年，德国运筹学家迪特里希·布拉斯(2)发现，为已经拥堵的网络增加线路只会使其运行速度更慢，现在我们称其为布拉斯悖论。
German researchers said older people tend to be portrayed negatively in society. Although they are often described as wise, they are also be shown as being slow and forgetful.
德国研究者说，社会倾向于描绘老年人的负面形象。尽管老年人通常被认为是明智的，但是他们也经常被贴上迟钝、健忘的标签。
Like the U. s., the euro zone may see its growth slow significantly later this year, especially if weaker Asian demand takes steam away from German exports.
跟美国一样，欧元区今年下半年的经济增速可能明显放缓，尤其是考虑到如果进一步走弱的亚洲需求消弱德国出口。
Weinig Group, a German machine-tool maker typical of midsize export-oriented companies, says new orders from China have begun to slow sharply.
该公司表示，来自中国的新订单已开始大幅减少。
Vacuum process Iron plate Frame, Bass section terminated by agraffe, Slow closing damping system Fallboard. Ebony Black Keyboard, German Roslau string, German FFW top hammer.
真空处理的钢板、低音区由搭扣终止、键盘盖带缓降系统。
Vacuum process Iron plate Frame, Bass section terminated by agraffe, Slow closing damping system Fallboard. Ebony Black Keyboard, German Roslau string, German FFW top hammer.
真空处理的钢板、低音区由搭扣终止、键盘盖带缓降系统。
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