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- This paper sums up the experiences of taking side loader, spray macchine and hy draulic driller as the heart in the mechanized constraction to develop the bolting and shotereting entries. 总结了以侧装机、喷射机和液压钻车为生的机械化施工开拓锚喷平巷存在的问题，并提出了科学合理的改进措施，以实现高效的锚喷开拓平巷的机械化施工。
- Comprehensive Analysis of Contact Stress between Piston and Cylinder in Water Hy draulic Piston Pump 水压柱塞泵中柱塞与缸孔接触比压的分析与探讨
- hy draulic actuator 液动执行机构
- None of us had ever set eyes on a generator before. 我们过去谁也没看见过发电机。
- The generator shuts off automatically. 这台发动机能自动停止运转。
- That's hy I prefer to travel in the summer. 那也是我为什么喜欢在夏季旅游的原因。
- We have an auxiliary generator in case of power cuts. 我们有一台万一断电时使用的备用发电机。
- The train was held up for and hour hy the accident. 这个事故使火车晚点一个钟头。
- Love. Hy is it always clearer looking back? 爱,在回忆里总是那么明白?
- Shanghai HY Hydraulic Seals Technology Co., Ltd. 上海爱力液压密封技术有限公司。
- HY group is your friend forever!! HY集团是您永远的朋友！
- W hy not change the reality memories? 为什么、回忆变不成现实?
- Zeng HY, Zhang XF, Sun Z, Fang WH. 李肖梁,尹兆正,钱娅，朱志刚，方维焕。
- The giant generator could be back in service. 巨大的发电机可以重新使用了。
- A generator may cut off if it is overtaxed. 发电机要是过荷，它可能会停止运转。
- The propeller turns a small D.C. generator. 螺旋桨带动一个小型直流发电机。
- She was a constant generator of story ideas. 她脑子里不断产生新故事构思。
- Fired hy the prospects for the mines, everyone was enthusiastic. 看到了矿区美好的前景，人人都热情洋溢。
- They scarcely ever used the emergency generator. 他们几乎从不使用应急发电机。
- Diesel generator governor sensitivity test. 柴油发电机调速特性试验。
