near-bottom velocity profile 近底水流结构
bottom velocity of wave motion 波浪底流速
bottom shear velocity 海底剪切速度
The result showed that systolic peak velocity of bottom cerebral arteries in heroin addicts was much higher than that of the normal control group (P<0.01).
结果表明观察组脑底动脉收缩期峰值血流速度明显高于正常对照组，差异非常显著（P＜0．01）；
For this reason, the well designer generally seeks to maximize the fluid velocity (or other measure of jet energy) to achieve maximum cleaning at the bottom of the hole.
正因为这一原因，井眼设计人员一般寻求使流体速度(或其它射流能量)最大化的方法去达到最大程度地清洁井底的目的。
It is assumed that there is an "effective bed velocity" on the bottom which determines the erosion and deposition of the bed.
说明底部有一个“作用流速”，才产生底床的冲刷与淤积。
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