The rocker arm on the jacket launch barge is a transition installation equipped at the stern.
导管架下水驳船摇臂是安装在船艉的用于导管架滑移下水的过渡装置。
参考来源 - 导管架下水后驳船摇臂运动与自动复位研究·2,447,543篇论文数据，部分数据来源于NoteExpress
艉迹流的均匀性与船艉振动与噪音问题有直接相关性。
The uniformity of propeller wake has close relationship to noise and vibration problems at ship stern.
本文分析这种现象，爆炸位置分别处在船艉和船舯正直下方，并给出试验的方法和数据。
This paper analyses the phenomena, which explosive positions are under the stern and the midship respectively, and gives the method and data of the test.
通过分析某船艉轴密封的构造，为提高其使用寿命，改装设计了一种新型艉轴密封装置。
To prolong the longevity of the tailshaft sealing, here we introduce a newly refitted tailshaft sealing by analysing its structure.
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