They typically have very high fixed costs of research and development and low marginal costs of adding additional users.
它们仅仅具有很高的用于研发的固定成本和极低的由新增服用者引发的边际成本。
The big gap between the headline and effective marginal taxrates reflects the large number of allowances given to firms for doingparticular activities, such as research and development.
法定税率和有效边际税率的巨大差异反映了各国种类繁多的优惠政策，比如补贴研发项目等等。
Second, a basic development plan should be found for a prospect with marginal economy in the block evaluated, and then a parameterization should be made for the plan.
在评价区寻找一个处于经济界限边缘的含气构造开发基础方案并进行相关参数化处理；
In Bohai Bay, the development of marginal fields further faces the challenges of extremely soft soil, ice, earthquake, etc.
渤海湾油田开发，还面临着海床超软土地基、海冰和地震等环境载荷的挑战。
The measures of water resources development with technical feasibility can be economically and rationally analyzed by using the marginal cost analysis method.
边际成本分析能对具有技术可行性的水资源开发利用方案作出经济合理性分析。
With vertical pipe shield and underwater pile-foundation, a protection frame for wellhead is designed for the development of offshore marginal field.
设计了一种适用于海上边际油气田开发的垂直护管水下桩基式井口保护架。
In the middle-late stages of production, as the deepening of the oil field development, the marginal operation output decrease, the cost increases, and the investment increase, too.
在油田开采中后期，随着油田开发程度的加深，措施作业边际产量递减，措施作业边际费用递增，措施作业增量边际成本递增。
If the economic is convergent, in this process, the backward economy will have higher growth rate than that of the development economy because of the higher marginal output of capital.
如果经济是收敛的，在收敛的过程中，落后经济由于具有较高的资本边际产出从而增长速度将比发达经济的增长速度快。
According to "the industrial space-time idea", there are two kinds of marginal industries with the development of technological innovation.
依照“产业时空观”，在技术创新的推动下，出现两种类型的边际产业。
This article mainly discusses the application of multipurpose tanker in the development of offshore marginal oil fields.
本文主要是论述多功能油船在边际油田开发中的应用。
Marginal posterior distributions of failure rate in last phase are derived under the assumption that the development process constrains the failure rates to be nonincreasing.
在假设研制过程中失效率是非增的约束下，导出了最末阶段失效率的边缘验后分布。
Feixianguan period, the Platform marginal shoals development extensive and more or less Platform inner shoals development.
飞仙关组则广泛发育台地边缘滩和少量的台内点滩。
So it is crucial to establish comprehensive evaluation and programming model as to improve the capacity of marginal field development of Chinese oil companies.
因此，积极探索边际油气田开发的综合评价和规划模型，对于提高我国的石油天然气公司边际油田的开发能力具有非常重要的实际意义。
So it is crucial to establish comprehensive evaluation and programming model as to improve the capacity of marginal field development of Chinese oil companies.
因此，积极探索边际油气田开发的综合评价和规划模型，对于提高我国的石油天然气公司边际油田的开发能力具有非常重要的实际意义。
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