A novel AC variable frequency converting control system with multiple functions is introduced. The system is suitable for maintaining constant oil pressure in main line of oil pipelines.
阐述了一种新型多功能交流变频调速控制系统，用于保持油田输油管主干线油压恒定。
The assumption of constant rock properties in pressure transient analysis gives good results in many oil and gas reservoirs.
在试井分析中通常都是假设岩石特性为常数，这个假设条件在许多油气藏的试井分析中取得了很好的解释结果。
Wuhan constant pump Manufacturing co., Ltd. (formerly: Wu heavy Group Light Industry Machinery Factory) is the domestic production "of constant static pressure oil pump long" professional companies.
武汉恒流泵业制造有限公司(原名：武重集团轻工机械厂)是国内生产“恒流静压供油多头泵”的专业公司。
The utility model relates to a mixer used for mixing diesel oil, water and emulsifier, composed of a constant pressure chamber, a choke, a nozzle, multilevel mixing chambers, an oil pipeline, etc.
一种用于柴油、水、乳化剂相混合的混合器，它是由恒压室、喉管、喷嘴、多级混合室以及输油管道等组成。
The oil-supplying unit by frequency conversion and constant pressure is generally used in mineral processing equipments in gold mine, such as ball mills, hydrocone crushers.
黄金矿山恒压供油装置一般用于球磨机、液压圆锥破碎机等设备中。
As there is certain response time for hydraulic valve startup, constant pump has to bear the momentary extremely high pressure impact with a high risk of oil pipe explosion.
液压阀开启有响应时间，定量泵系统启动时，瞬间压力冲击特别大，油管容易爆裂。变量泵启动时只有3mpa左右的待命压力，消除了爆管的隐患。
As there is certain response time for hydraulic valve startup, constant pump has to bear the momentary extremely high pressure impact with a high risk of oil pipe explosion.
液压阀开启有响应时间，定量泵系统启动时，瞬间压力冲击特别大，油管容易爆裂。变量泵启动时只有3mpa左右的待命压力，消除了爆管的隐患。
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