The prefeasibilitystudy must be put forward before the appraisal and the establishment of the large scale and middle scale railway construction projects.
铁路大中型建设项目在审批立项之前，都必须进行预可行性研究。
2
Synfuels China also planned a huge CTL plant in Guizhou Province and prepared a pre-feasibilitystudy on the project.
中科合成油在贵州也规划了煤制油项目，目前已经完成了预可研。
3
Hydrofracturing in situ stress measurements were used to determine in situ stress states of two drill holes for the pre-feasibilitystudy of an underground reservoir at an engineering site in China.