Determining whether such mirror neurons exist in humans will require more research, using indirect methods such as functional brain imaging.

判定人类是否有这样的镜像神经元存在需要更多的研究，采用间接的方法例如脑功能成像。

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In presenting method, it contains direct and indirect methods.

现金流量表的编制方法包括直接法和间接法。

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Several indirect methods are available for finding distances to stars farther away than this.

有几种间接的方法，对于确定比这更遥远的恒星的距离很有效。

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Until Dr Agrawal's discovery, even these indirect methods were slow.

ECONOMIST: Number theory

To find out how warm the earth was before that, climatologists have had to resort to indirect methods, such as measuring tree-rings, or counting the different isotopes of oxygen in layers of polar ice.

ECONOMIST: The hole story of global warming

De Beers has been selling its diamonds and diamond jewelry through indirect methods to the U.S. For example, through a separate entity with luxury retail conglomerate, LVMH, it sells diamond jewelry on the retail level in the U.S. through the De Beers Diamond Jewellers brand.

FORBES: De Beers Seeks A Return to the U.S., Moves Diamond Operations To Botswana