A preliminary estimate or conceptual estimate is based on the conceptual design of the facility at the state when the basic technologies for the design are known.
初步估算或者称为概念方案阶段估价主要基于概念设计方案进行估算，此时只明确了最基本的技术方案。
Moreover, this is a preliminary estimate and past revisions have sometimes been quite large; barely perceptible growth of 0.1% in late 2009 was subsequently pushed up to 0.5%.
此外，这只是初步估计，有前车之鉴表明初步估计与事实有时相差甚大。2009年末几乎不能感觉到的0.1%增长率最终被推升至0.5%。
In flight vehicle preliminary design it is necessary to quickly and economically estimate the aerodynamics of a wide variety of flight vehicle configuration designs.
在飞行器的初步设计中，快速而有经济地估计出飞行器结构设计中的各种气动特性是非常必要的。
ConclusionThe preliminary findings show that, DWI can not accurately distinguish different degrees of hepatic fibrosis, but can be a rough estimate of hepatic fibrosis.
结论初步研究结果显示，DWI不能精确区分不同程度的肝纤维化，但可以粗略估计肝纤维化程度。
During the period of preliminary design and construction drawing design, the budget statement should be prepared respectively so as to optimize the cost estimate.
在初步设计、施工图设计阶段分别编制初步设计概算书和施工图设计预算书，进一步优化成本预算。
During the period of preliminary design and construction drawing design, the budget statement should be prepared respectively so as to optimize the cost estimate.
在初步设计、施工图设计阶段分别编制初步设计概算书和施工图设计预算书，进一步优化成本预算。
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