Understanding head control is important.

认识到头部控制是非常重要的。

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There is simply no way that Joseph Stiglitz inserted, say, the figure that the top 1% of Americans control 40% of the country's wealth off the top of his head.

Joseph Stiglitz绝不会拍脑袋乱讲一个数据，比如1%人口控制了国家40%的财富。

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Therefore, the placement machine can control placement head to place fiber in any position.

这样铺放机可以控制铺放头到达空间的任意位置进行铺放。

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Dr. Nawis Bilinyambe(ph), the head of Zambia's malaria-control program, says one of the most important things Zambia is doing is educating people about the disease.

NPR: Gates Foundation Backs Zambian Malaria Initiative

There was no control group or head-to-head comparison with embolization.

FORBES: Not Hot Enough

Li Changjiang, the head of China's quality-control watchdog, resigned.

ECONOMIST: Politics this week | The