背向擺動 的英文怎麼說
中文拼音 [bēixiàngbǎidòng]
背向擺動
英文
backswing-
Since these theoretical analyses are based on inviscid potential flow theory, theoretical calculation and computational simulation may complement each other. the hydrodynamics and undulating propulsion of specimens were studied using three dimensional computational fluid dynamics ( cfd ) modeling. the cfd analysis using kinematic model of undulatory dorsal / median fin draws a series of conclusions, which include that the body drag increases significantly with the lateral body oscillation ; the body drag is minimum while the start point of
計算結果表明游動過程中的形體阻力隨側向周期性擺動而增大;當背鰭前端位於身體側向最寬處時，形體阻力具有局部最小值，結論與實驗觀測結果相吻合;在實驗觀測的典型運動參數下，波動面的運動方程中的非對稱因素的出現使推進力增大約1 . 10倍。Unique arc rolling enable to massage in forward or reverse direction, includes : kneading, knocking and rolling up and down the back, to keep massage transferring up to large area on the whole back, which has an effect on smoothing respiration
獨特的弧擺滾動功能，具有定點正反向滾壓和推拿叩擊及行走滾動，實現脊背腰部大面積的移動按摩，具有增氧作用，此產品是廣大消費者之首選。
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