量子点的发射波长取决于核心粒子的大小，而每一种单色量子点的发射波长窄而对称。
The emission wavelength of QDs was controlled by the size of the core and each single-color of QDs has narrow symmetrical emission peak.
采用80c196单片机为控制核心，解决了窄间隙埋弧焊机的微机控制问题。
The control system by microcomputer for tandem wire narrow gap SAW machine is solved adopting 80c196 monolithic computer.
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