在PERT技术中运用对偶理论，为敏度分析创造了必要条件。
Prerequisite for dual theory and sensitivity analysis in PERT is set up.
因此我国十分有必要立项研究和开发高灵敏度的光纤氢敏传感器。
Our country quite need to investigate and develop high sensitivity optical fiber hydrogen sensors.
因此我国十分有必要立项研究和开发高灵敏度的光纤氢敏传感器。
Our country quite need to investigate and develop high sensitivity optical fiber hydrogen sensors.
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