从资金利用和土地利用两个方面模拟出槾桔生产经济效益变化的数学模型，经过技术经济分析，找出槾桔树的最佳经济寿命为树龄33年左右。

Two mathematical models of economic benefit change were simulated. As a result of technical economical analysis, the optimal economic life-span was found to be about 33 years old.

youdao

从资金利用和土地利用两个方面模拟出槾桔生产经济效益变化的数学模型，经过技术经济分析，找出槾桔树的最佳经济寿命为树龄33年左右。

Two mathematical models of economic benefit change were simulated. As a result of technical economical analysis, the optimal economic life-span was found to be about 33 years old.

youdao