周期T的英文全称是什么？】 周期可以用period、cycle来表示，也可以用间隔interval来表示，但是其具体表示单位往往使用时间：如1年、20小时等.所以无论英语单词如何，用T来代替具体周期时间是最好的，也是最形象的.我是搞飞行校验的，需要按周期进行校验，我觉得我的解释应该更正确.
英语翻译 Due to the big construction project construction investment with a long cycle characteristics such as to the importance of the construction project decision-making，the decision is correct or not to the project's construction success or failure play a key role in the whole process of construction projects throughout the project cost estimation，be project feasibility study stage financial analysis and economic evaluation is an important basis but China's current engineering budgeting method speed slow and the time required for long，can not meet the needs of the bidding，therefore，the author in this paper based on the theory of fuzzy mathematics，USES the exponential smoothing，the introduction of cost index，establish a model in order to make the result close to the actual cost in theory，we to model is improved，that is，through the establishment of project cost evaluation index system，using fuzzy ensemble.累死了.
英语翻译：脉动变星是星体的外层在周期性地膨胀和收缩的变星.
