Floc size distribution in a dynamic flocculator with a flat vane wheel was measured experimentally.
实验测定了平直叶轮动态混合絮凝器内絮团粒度的空间
。
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The problem relates to the way data is stored on large websites: While your personal computer only keeps one copy of a file, large-scale services like Facebook rely on what are called " content delivery networks " to manage data and distribution.
你

电脑里只保留了文件
一
副本,像脸谱网这样
大型服务器会通过内容
发网络来对数据进行管理和
。
速 2016年7月合集
-科技 Mr. Grant does not expect print products to vanish. " Do I envision a time when people won't buy print? No, " he says" .Do I envision a time when the predominant distribution mechanism is digital? Absolutely" .
格兰特并不认为印刷品会消失。" 我想没想过什么时候
们将不会购买印刷品呢?没有。" 他说," 我想没想过什么时候电子渠道将会成为主要发行途径呢?当然想过。"
演讲综合 Fifteen years have passed since that incident, I am happy to report that my hand is fine. But this question lingers and I continued to be troubled by the unequal distribution of scientific knowledge throughout the world.
距离那
事故发生已经十五年了,我很高兴地告诉你们:我
手现在恢复地很好。不过这
问题在我心里萦绕了很久,我也时
会被科学知识
布
不均衡问题所困扰。
Part of the problem there is companies like Chewy and Amazon, large warehouse and distribution centers, are attracting entry level workers away from factories, even though experts say manufacturers can often give more and better long-term opportunities.
问题
一方面是,像Chewy和Amazon这样
公司,他们
大型仓库和
送中心吸引着一些初级工
离开工厂,尽管专家表示,制造商通
可以提供更多更好
长期就业机会。