inside vertical passage 内垂直通道
vertical oil passage 竖直油道
vertical annular passage 竖直环形通道
vertical evacuated passage 坚向疏散通道
The results show that guide bearing load of large vertical water pump has something to do with inlet passage of pump station, pump unit manufacture and installation quality, structure pattern.
研究结果表明：大型立式水泵导轴承荷载与进水流道和机组制造安装质量、结构形式有关。
Pinghu fault is the main passage for the vertical migration of oil and gas.
平湖断裂是天然气垂向运移的主要通道。
Therelationships among the ground reaction forces, the duration of passage through the air and the vertical impulse during stop jump shot were analyzed.
分析急停跳投阶段地面对测试对象的作用力、测试对象的腾空时间、垂直方向冲量等几个量之间的关系；
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