ultrasound velocity 中文意思是什麼
ultrasound velocity
解釋
超聲速- ultrasound : n. 超聲波〈用於醫學上診斷、治療和外科手術等方面〉。
- velocity : n. 1. 迅速；快速。2. 速度，速率。3. 周轉率。
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The propagation velocity of ultrasound in patient ' s shinbone can be achieved by figuring out the time span between emergent wave and echo wave
根據相關公式，只需計算出超聲波發射信號和回波信號的時間差，即可獲得定量超聲波在受試者脛骨的皮質骨中傳播速度。 -
However the cavitation effect induced by ultrasound may prematurely catalyze nucleation, which hinders the further achievement of bulk undercooling. the measured growth velocity of ice dendrite is 0. 17m / s corresponding to the maximum undercooling of 24k
討論了空化效應對水滴過冷度的影響，認為空化效應誘發水滴提前形核，抑制了大過冷度的獲得。 -
Methods : in 45 cases ( 50 lower limbs ) with differernt clinical stages of venous incompetence of lower extremities, the number, diameter and blood flow velocity of pvs were examined by color doppler ultrasound
方法：用彩色多普勒超聲檢查下肢靜脈功能不全患者45例50條下肢的小腿交通靜脈的數目、部位、內徑及血流速度，並分別與患者的臨床表現分級進行相關性分析。
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