播散葉 的英文怎麼說
中文拼音 [bōsǎnyè]
播散葉
英文
vane， diffusion-
Presents the model proposed for analyzing the vibration characteristics of shrouded blades and their calculation method by employing a wave propagation theory and modal synthesis technology coupled with a finite element method from the view point it is possible not only to conduct frequency modulation of the shrouded blades of a gas turbine, but also to utilize the friction effects between them to dissipate energy, thereby attaining the aim of vibration alleviation, as shrouded blades have been widely used in the design of high - speed turbomachinery, such as modern gas turbines and steam turbines, and with the shrouded blades forming an integral whole in a centrifugal force field, the vibration characteristics of the whole ring of blades are different from those of a single isolated blade, and this makes it essential to take into account the integral effect of blade shrouds, concludes from the calculation examples and engineering application that the above approach is valid and correct along with the possibility of considerably reducing the scale of calculation and analysis, and points out it is necessary to take into consideration the coupled effect of the whole ring of blades while the dynamic characteristics of shrouded blades is being analysed
帶冠葉片不但能調頻，還可以利用葉冠之間的摩擦效應來耗散能量，達到減振的目的.帶冠葉片在離心力場中形成一整體，其整圈葉片振動特性不同於單個孤立葉片，需考慮葉冠的整體效應.利用帶冠葉片系統的循環對稱性，提出了採用波傳播理論和模態綜合技術，結合有限元方法研究燃氣輪機帶冠葉片振動特性的分析模型和計算方法.算例和工程應用證明了該方法是效性的、正確的，並可以大大降低計算分析規模.研究表明帶冠葉片動力特性分析時必須考慮整圈葉片的耦合效應Further development of disseminated tumor can spread from the lungs directly penetrated the chest wall, mediastinum, heart, vascular and other neighboring tube organizations ; after blood lymphatic metastasis to other parts of the body through the respiratory tract or disseminated to other lobe
癌腫進一步發展播散則可從肺直接蔓延侵入胸壁、縱隔、心臟、大血管等鄰近器管組織；經淋巴道血道轉移到身體其他部位或經呼吸道播散到其他肺葉。During the first half of the twentieth century, in some seemingly unrelated research fields appear the studies on science and technology communication, such as researches on science and technology communication in the science and technology study, on technology proliferation in the communication science, and communication practices on technological communication study, all of which can be regarded as the three sources of science and technology communication
摘要20世紀上半葉，在一些看起來並不相關的研究領域中，先後出現了一些有關科技傳播的研究，例如科學技術學對科技傳播的研究、傳播學對技術擴散的研究、 「技術傳播」對傳播實踐的研究，這些研究對科技傳播學的產生和發展產生了重要作用，實際上成為科技傳播學的三大源頭。You are open to the fascinating scene of young grass and leaves gently waving in the spring breeze and enjoy the faint fragrance carried by it
感受春天的微風輕撫最初萌芽的青草和樹葉，把稚嫩的清香散播到四面八方。分享友人