Using increment analysis, the law of changing economic factors, such as cost, price, discount rate, etc, to influence the model optimization could be studied under different planting measures.
运用增量分析方法，研究不同栽培措施下，成本、价格、折现率等经济因素变化对栽培模式优化的影响规律。
The cost structure of energy consumption of hot oil pipeline has greatly taken place by the constant increment of electrovalency and great drawdown of heating oil price.
由于电价不断上涨导致燃油价格大幅度下降，使热输管道的能耗成本结构发生了较大变化。
In this paper, two concepts calculated price of output value and coefficient of increment are put forward, with which the problem of calculating output value of silviculture is solved in theory.
本文提出产值计算价格和生长量系数两个概念，并运用它们，从理论上解决了营林产值计算问题。
As a necessary increment service, pure-software record system has many problems in technique and market yet, such as immature technique, low efficiency, few product and high price.
作为其中不可缺少的增值服务之一，纯软件录音系统的技术和市场现状尚存在不少问题，突出表现在技术不成熟，效率低下，因此导致此类市场产品极少且价格昂贵。
As a necessary increment service, pure-software record system has many problems in technique and market yet, such as immature technique, low efficiency, few product and high price.
作为其中不可缺少的增值服务之一，纯软件录音系统的技术和市场现状尚存在不少问题，突出表现在技术不成熟，效率低下，因此导致此类市场产品极少且价格昂贵。
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