这股力量曾经让史玉柱的“系统”失算，我相信，它同样也可以成为江南春真正的噩梦。

This force once made Shi Yuzhu's system injudicious, I believe, it also can become the nightmare with Changjiang Delta real spring likewise.

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隋允康、任旭春。斜井单螺杆抽油泵柱和扶正器间距的最优设计。计算力学学报，2002，1（19）：58-62。

Optimization of Shaft Size and Centralizer Span of Single Screw Pump in Declined Oil Well. Chinese Journal of Computational Mechanics. 1(19):58-62.

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