synclines

All synclines do not increase the return energy.
But the author was strangely silent on such details-indeed, silent on everything but anticlines, synclines, axial faults, and the like.
但作者却非常奇怪，对此类细节缄口不言，只谈论些背斜、向斜、地轴偏差类似的东西。
That is, as a rule, a scraper chain conveyor does not only follow synclines and anticlines, but it also frequently follows curves.
这就是，作为一项规则，刮板链式输送机不只能跟着向斜和背斜，但它也常常如下曲线。