The beam expansion method is suited to approximate the weakly truncated beams in the far field.

光束模式展开法可用于近似计算远场的弱截断光束。

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It is shown that the thermal effect decreases the peak intensity and beam focusability in the far field.

结果表明：热效应使远场光束的峰值光强和可聚焦能力下降。

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Two ABCD matrices for describing hard apertured Gaussian beams weakly diffracted in the far field are defined.

定义两种描述高斯光束被硬边光阑弱衍射的远场下的光阑ABCD矩阵。

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He adds that Russia in this field is far behind what he calls the modern civilized world.

VOA: standard.2009.03.20

They will start the new season in Australia on 27 March as favourites - their new car, the RB7, has looked the class of the field so far in pre-season testing.

BBC: Red Bull get budget boost through Infiniti link-up

These funding mechanisms will take into consideration the work done in this field so far by others and will align its functioning with other initiatives by the World Bank and EC, providing parallel co-financing and further enhancing the innovation potential of the programme.

UNESCO: Water

Calling Amazon "the Darth Vader of the literary world, " Turow said in an op-ed piece for Bloomberg last month that an Apple lawsuit would tilt the field too far in Amazon's favor.

CNN: Will Apple lawsuit mean cheaper e-books?