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1·Physicists often work with finite lattice models—generalizations of two-dimensional checkerboards—as approximations to continuous reality.

物理学家的研究经常要使用有限格模型——二维棋盘的扩展——作为对连续实在的逼近。

2·Beads of water cling to its screen, necklaces unstrung, locked by the screen's grid into something like a checkerboard, if checkerboards wore jewelry.

水珠粘附在后门的纱屏幕上，它们就像松开了的项链珠子，假如棋盘穿戴着珠子，那么这些珠子纱被屏幕上的网格锁定得像一付棋盘。