Highly effective in terms of initial cost and general usability, the steel sub-frame floor systems creates a level and solid platform on which to base your event.

在初始成本高和一般可用性方面有效，钢子框架层系统创建了一个坚实的平台水平和所依据您的活动。

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Many developers have high hopes that the PDE will ultimately become the most cost-effective method of propelling supersonic sub-orbital craft.

许多开发人员具有很高的希望，PDE将最终成为最具成本效益的推动超音速亚轨道飞行器的有效方法。

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Sub-models are effective labor model, fixed capital model, productive cost model and land productivity model.

次一级的模型包括有效劳动模型、固定资本模型、生产费用模型和土地生产潜力模型。

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Moreover, this particular vaccine would not be effective in sub-Saharan Africa, where AIDS has been most devastating.

FORBES: Magazine Article

SKA's proponents are talking of scattering its sub-telescopes over an area of 1m square kilometres, which would create an effective diameter of about 1, 000km.

ECONOMIST: Radio telescopes

Accordingly, I have decided to terminate the designations of the Republic of Mali and the Republic of Guinea-Bissau as beneficiary sub-Saharan African countries for purposes of section 506A of the 1974 Act, effective on January 1, 2013.

WHITEHOUSE: The White House