up-hole velocity 上返速度
bottom hole flow velocity 井底流速
Cross hole wave velocity test 跨孔法波速试验
cross-hole wave velocity test 跨孔试验
valve hole critical gas-velocity 临界阀孔气速
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 can decrease the production of air hole by controlling the stableness of the velocity when female die contacted the liquid of aluminium.
摇盘凸模接触到铝合金液时，控制加压速度平稳一些，可减少气孔的产生。
When the surface hole recombination velocity and defect density is bigger, the length of nanowire should not be too long.
当表面复合速率和体缺陷密度较大时，纳米柱的长度不宜过大。
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