hydraulic prop的用法和樣例：
例句
- On the basis of the theory of probability, this paper analyzes stability for the hydraulic prop.
用概率理論分析了單體液壓支柱的穩定性問題。 - At last, it is proposed to spread the application of dual-metalic materials in hydraulic pillar-making industries.
提出在液壓支柱行業應推廣使用雙金屬材料。
