针对工程机械质量评价过程中，评价信息的不完全性和不确定性，建立了处理未确知信息的未确知决策模型。
Aiming at the incompleteness and uncertainty of the information to be appraised in appraising the quality of hydraulic excavator digger, we establish the unascertained decision model to deal with it.
构造的不确定性、储集层的非均质性及钻井过程中的各种工程因素，都使水平井的钻井成功率受到影响，新开发区块更是如此。
Structural uncertainty, reservoir's anisotropic and various engineering factors in drilling can influence the success rate of drilling horizontal Wells, especially in new development zone.
在项目实施阶段，可减少项目施工过程中的不确定性，为项目创造稳定、有序的工作环境，从而防止返工浪费、控制工程造价。
At project implementation stage, it also can reduce the uncertainty, create a steady, orderly working environment, and thus prevent redoing the same work and control the construction price.
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