Then the scientists threaded the rope so that it would take two elephants, pulling both ends at the same time, to move the table. If one yanked an end without its helpmate doing so, no reward.

之后，科学家们穿开绳子，这样就需要两头大象同时拉绳子的末端来移动桌子，如果猛拉其中一端而帮友没有这么做，将不能获得食物。

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Threadless anti-impact smooth sections can be arranged on the outer ends of the threaded sections of both ends of the steel barrel.

可在钢桶的两端的螺纹段外侧设置着无螺纹的抗冲击光面段。

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Then the scientists threaded the rope so that it would take two elephants, pulling both ends at the same time, to move the table.

之后科学家将绳子串起来，这样就需要两头大象同时拉起绳子尾端来移动桌子。

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