强度高，使用寿命长，耐温可达300摄氏度以上不变形。
High strength, long service life, the temperature can reach 300 degrees Celsius and above deformation.
介质变形对火山岩气藏渗透率影响较大，而对孔隙度影响较小。
Media deformation has great effect on permeability while it has little effect on porosity.
并讨论了转速及沉没度对杆柱变形的影响。
This paper also discussed the influence of rotating speed and sinking speed.
并讨论了转速及沉没度对杆柱变形的影响。
This paper also discussed the influence of rotating speed and sinking speed.
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