Based on the natural vegetation NPP model Zhou Guangsheng and Zhang Xinshi, the space-time changing trend of natural vegetation NPP in Urumqi area in the last 30 years was estimated.
利用周广胜、张新时提出的自然植被净第一性生产力模型，估算分析了乌鲁木齐地区近30年自然植被净第一性生产力(NPP)的时空变化。
The mathematical model of heaving effect on NPP primary loop's natural circulation ability is established.
建立了起伏影响核动力装置一回路自然循环能力的数学模型。
The mathematical model of heaving effect on NPP primary loop's natural circulation ability is established.
建立了起伏影响核动力装置一回路自然循环能力的数学模型。
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