The invention discloses an optimum method to control ion beam transmission, which comprises the following steps: (1) adjusting deflecting power to make focusing cup produce beam maximum;

本发明公开了一种离子束传输控制优化方法，包括如下步骤：（1） 调节偏转电源，使得聚焦杯获得束流极大值；

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After South Africa's successful hosting of the football World Cup more and more people are focusing on the opportunities of Africa.

随着南非成功地举办世界杯足球赛，越来越多的目光开始关注非洲的机会。

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As with the women's World Cup, it is focusing on grassroots ticket campaigns, bringing in families, schools and the growing numbers of amateur senior players.

ECONOMIST: Women��s soccer

Prior insisted he was not yet looking to the World Cup, which starts on 19 February, and was focusing solely on helping England level the one-day series against Australia.

BBC: Cricket World Cup: Matt Prior surprised by England call

In all, nine countries are bidding to host the World Cup in either 2018 or 2022, with two more nations focusing their bids on 2022 alone.

BBC: 2018 bid chief calls for humility