low pressure process的意思|示意

Oilfield application obtained better results. For low pressure and low permeability hydrocarbon reservoirs, especially gas well, this perforating completion process has important application value.

通过现场应用取得了较好的效果，该工艺技术对低压、低渗油气藏特别是气井的射孔完井具有重要应用价值。

But the fuel starting injection pressure will turn low gradually when the operational time of the diesel engine increases. This will cause worsening of the combustion process and fuel economy.

但是随着柴油机使用期的增长，启喷压力会逐渐降低，导致燃烧过程恶化，经济性下降。

In view of seepage process in vertical fracture well in low permeability reservoir, considering kickoff pressure gradient and media deformation coefficient, bilinear flow model is established.

针对低渗透地层垂直裂缝井的渗流过程，考虑了启动压力梯度和介质变形系数的影响，建立了三线流模型。

A new expendable pattern casting (EPC) process, with vacuum and low pressure, was introduced.

介绍了一种新的铸造技术——真空低压消失模铸造的工作原理。

An improved oxidation ditch process using forced air supply low-pressure jet aeration system was used to treat middle-stage wastewater from pulping and papermaking.

采用供气式低压射流曝气系统改良型氧化沟工艺处理制浆造纸中段废水，对整个调试运行过程进行了介绍。

Low pressure casting is the process of metal liquid filled in mould down-top in virtue of pressure of crucible.

低压铸造是利用坩锅内气压，将金属液体由下而上充填模具的过程。