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叶尖间隙；尖端间隙；齿顶间隙
1、tip───v.（使）倾斜，翻倒；倒出，倾倒；轻触；丢垃圾；给小费；预测成功；覆盖端头；n.(Tip)（美、俄）蒂普（人名）；n.尖端；小部件；小费；小建议，小窍门；（比赛的）内部消息；垃圾场，脏乱处
2、clearance sales───n.清仓削价销售( clearance sale的名词复数 ); [经] 出清存货，大贱买，销售底货
3、clearance hole───穿通孔，出砂孔；排屑孔；（铸件的）出砂孔，（板牙的）排屑孔径
4、diffusive clearance───扩散间隙
5、gratuity tip───小费
6、security clearance───n.（对参加秘密工作人员等进行的）忠诚调查; 安全调查; 参与机密的资格; 安全级别 (An Quan Bao Mi)；忠诚调查；安全调查
7、tip toe───adv.用脚尖；偷偷摸摸地；n.脚尖；adj.踮着脚走的；偷偷摸摸的；v.踮着脚走
8、clearance jobs───清关工作
9、clearance event───清关（外贸术语）
1、Appropriate tip clearance flow can improve the flow in the tip region.───适量的间隙流动有利于改善通道顶部区域流动。
2、The results show that moderate tip clearance is needed to get better performance.───结果表明：适当小的叶尖间隙可以使转子获得较好的性能；
3、The effects of tip clearance on duct propeller's performance were investigated in six different tip clearances.───六种不同的叶梢间隙研究叶梢间隙对导管桨性能的影响。
4、The computed conclusion show that the magnitude of tip clearance has close relationship with the intension of tip leakage flow.───结果表明叶尖间隙的大小与泄漏流动的强度密切相关。
5、The numerical result shows increasing the tip clearance will reduce hydrostatic head, especially at small flow rate.───数值结果表明，间隙增加，扬程下降，特别是越在小流量工况下越明显。
6、The effects of tip clearance on duct propeller's performance were investigated in six different tip clearances.───选择六种不同的叶梢间隙研究叶梢间隙对导管桨性能的影响。
7、Finally a scheme of engine's tip clearance measurement by capacitance method is given.───提出了电容法测量发动机叶尖间隙的方案。
8、When tip clearance is considered, cooling air ejected from the tip holes can cool the leading edge and middle part of the blade tip.───在考虑叶顶间隙的情况下，从叶尖孔喷出的冷气能对叶尖前缘和叶尖中部区域进行有效的冷却。
9、along with the reduction of shroud radius, tip clearance flow of the rotor becomes strong.───随着的罩壳半径的减小，动叶叶尖处间隙流动逐渐增强；