Methods of test for petroleum and its products - bitumen and bitumenous binders - determination of the resistance to hardening under the influence of heat and air - rft method 石油及其制品试验方法.沥青和沥青粘合剂.在热和空气影响下抗硬化测定. rft法
The relative frequency training ( rft ) method is used to estimate the model parameters . and the problem of the data sparseness is solved through the backing off data smoothing algorithm 同时采用了回退式参数平滑算法来解决了一阶隐马尔可夫模型的数据稀疏问题。
This paper analyzes the cementing quality of newly drilled wells and rft in east transitional zone in xing 10 - 11 area and proves the existence of abnormal high pressure horizon in the reservoirs of this oil zone 摘要通过对杏十十一区东部过渡带外扩井区新钻井固井质量的分析及裸眼地层压力测井( rft )结果，证实该区油层段有异常高压层存在。
