Every individual starts with fitness 1 at point a and can raise its fitness based on how close it gets to point B. Every command "u", "d", "l", or "r" moves up, down, left, or right, respectively.
每个个体从a点开始，并且其适应性为1，然后个体可以根据它与b点的接近程度来增加它的适应性。命令“U”、“D”、“L”或“R”分别代表上移、下移、左移或右移。
The extra phases of polarized light due to photon helicity inversions on the interfaces between left-and right-(L-R) handed media is considered in this paper.
研究了正负材料交界面上光波因螺旋度瞬时翻转所导致的额外相位。
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