Unfortunately, the process is difficult to perform on plastics, particularly with the complex circuits required for flexible displays.

不幸的是，这个流程要在塑料上进行太过困难，特别是和弯曲显示需要的复杂电路混合在一起的时候。

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A direct sequence spread spectrum (DSSS) receiver has strict requirement on local carrier's synchronization, and always needs complex circuits.

直接序列扩频接收机对本地载波的同步要求非常严格，以往所需电路复杂。

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Some very complex circuits and driver have been worked out to handle this switching, with still possible failure at repeated switch-on and -off.

某些非常复杂的电路和驱动器已被设计用于处理该开关操作，但是其在重复地导通和关断时仍可能失效。

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The BRAIN Initiative will accelerate the development and application of new technologies that will enable researchers to produce dynamic pictures of the brain that show how individual brain cells and complex neural circuits interact at the speed of thought.

FORBES: President Obama Pledges $100 Million To The Human BRAIN Initiative

Dr Lin is already testing a waveguide designed to steer light with a wavelength of 1.5 microns, and he is also working on three-dimensional waveguides made of silicon, which will provide almost total control over the path the light takes, and make really complex optical circuits possible.

ECONOMIST: New-age crystals

Last year Dr Benenson's team developed one of the most complex cell-based molecular circuits created so far, though it is still much simpler than systems built in test tubes.

ECONOMIST: DNA computing