The selenium content variation displays a positive correlation with the sea level fluctuation curve, with the selenium content reaching a maximum at the highest Marine flooding surface.
硒含量变化与海平面升降曲线表现出正相关，在最大海泛面处达最大值。
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New floor design type - the "Hull" floor building tool will allow designers to barrel-curve their floors to allow free-floating buildings, in case of global flooding.