But because structure and fluid property have influence on reservoir, formation pressure presents varied regular change longitudinally and transversely.
但由于油藏受构造和流体性质的影响，地层压力在纵向和横向上呈现出多种有规律的变化。
Relative parameters are determined according to analysis and control on temperature and structure change course should be strengthened in order to improve product property and quality.
通过分析，确定了相关参数，提出应加强对温度及组织变化过程的控制，以提高产品的性能、质量。
Meantime it finds out property change reason of coarse crystal area from welding coarse crystal area structure change and puts forward the direction of toughness.
同时，还从焊接粗晶区组织变化中找出了粗晶区性能变化的原因，并提出了韧化方向。
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