single-span shaft
常見例句
- Optimization of Shaft Size and Centralizer Span of Single Screw Pump in Declined Oil Well. Chinese Journal of Computational Mechanics. 1(19):58-62.
隋允康、任旭春。斜井單螺桿抽油泵柱和扶正器間距的最優(yōu)設計。計算力學學報,2002,1(19):58-62。
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