hydraulic prop的用法和样例：
例句
- On the basis of the theory of probability, this paper analyzes stability for the hydraulic prop.
用概率理论分析了单体液压支柱的稳定性问题。 - At last, it is proposed to spread the application of dual-metalic materials in hydraulic pillar-making industries.
提出在液压支柱行业应推广使用双金属材料。
