防喷管安装在采油树的顶部，被试压，把工具放入到防喷管中，然后防喷管加压到与井眼压力一致。
The lubricator is installed on top of the tree and tested, the tools placed in the lubricator and the lubricator pressurized to wellbore pressure.
以此方法模拟了喷管和二维叶栅的多个非平衡态凝结流动，计算和试验测量的压力分布较好地吻合。
The nucleating flows in nozzles and cascades are simulated by this method and good agreement is obtained between experiment and calculation.
另外，蒸汽夹套喷管被供汽压力下的蒸汽完全包围，进一步减小因辐射损失造成的冷凝。
What's more, the steam-jacketed steam distribution manifold completely surrounds the distribution pipe with steam at supply pressure, further reducing condensation due to radiation loss.
首先，考虑变化压力，分析微喷管流场各项参数的变化，得出其对微喷管性能的影响。
First, the influences of inlet pressure variations on micro nozzle's performance are obtained by analyzing the variations of various flow parameters in micro nozzle accordingly.
数值结果表明：在扩张比和进出口压力相同的条件下，微喷管出口马赫数随着微喷管尺度的减小而减小。
The numerical results also show that the first sonic point position moves away from the throat to the outlet of the micro nozzle with decrease of the throat width.
在马赫8炮风洞中开展了不同初始真空压力条件下风洞喷管启动过程对侧压进气道启动的影响研究。
Effect on inlet starting of nozzle starting process was studied in a 500 mm Mach 8 gun tunnel.
有利于准确预估压力——时间曲线和为喷管两相流动计算提供更精确的边界条件。
It is useful for predicting pressure-time curves accurately and providing accurate boundary conditions for the…
有利于准确预估压力——时间曲线和为喷管两相流动计算提供更精确的边界条件。
It is useful for predicting pressure-time curves accurately and providing accurate boundary conditions for the…
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