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- Analysis shows that the method can achieve the highest machining efficiency un der given precision. 分析表明：该模型所确定的刀具路径，在相同精度下可达到最高加工效率。
- Battery cycle life was more than 800 times un der conditions of charge to 100%SOC and discharge to 100%DOD at 1?C? rate. 在100%25DOD放电深度下电池的1C倍率充放电循环寿命超过800次;
- The result shows that un der the changing load,the bearing adapting pressure-following oil-providing system has good working performance. 计算结果表明，在变载荷情况下采用压力跟踪供油方式可使轴承始终处于良好的工作状态。
- It has good effect to the coalescence fot small oildrops that oil,gas water three phhse mediums un der definite acceleration make cyclone at the same time. 油、气、水三相介质在一定的离心加速度下同时旋流，对小油珠有很好的聚结作用，可获得较好的油、水分离效果。
- Background: We reviewed the patients who un der went tricuspid valve replacement (TVR) to compare the long-term clinical results of bioprosthetic valve with mechanical valve in tricuspid position. 背景：对接受过三尖瓣置换术(TVR)的患者进行回顾，比较生物瓣膜和机械瓣膜的远期临床效果。
- The calcium carbonate polycrystalline with a special spherical structure prepa red by control crystallization method was treated with phosphoration reaction un der microwave irradiation, and the products were characterized by ESEM,XRD and EDS. 对通过溶液结晶制备的类球状聚晶型碳酸钙微粉,进一步借助微波辐射使晶体表面快速磷酸化,并利用ESEM,XRD和EDS等进行表征。
- The changes in respiratory rate and in mitochondrial H + ATPase, Ca 2+ ATPase and H + PPase activities from the roots of two wheat ( Triticum aest iv um L.) cultivars, Altas 66 (Al tolerant)and Scout 66 (Al sensitive)were compa red un der aluminum stress. 比较了耐铝性不同的两品种小麦 Altas66和 Scout66根呼吸速率、线粒体 H+ - ATP酶、Ca2 + - ATP酶和焦磷酸酶活性变化。
- Make the hammer die with High-chromium cast iron and make the handle with the circle-steel-made ring by composite metal cast.The troostite and carbide are gained un der casting state. 用高铬铸铁作锤头，用圆钢制成的环状锤柄采用金属型复合铸造，在铸态下获得屈氏体基体+碳化物。
- The runner was retired put out at first base. 跑垒者于第一垒上被刺杀出局。
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。
- The runner is still going strong on the last lap. 那个赛跑运动员在跑最後一圈时仍然劲头很足。
- I'm a long-distance runner, not a sprinter. 我是长跑运动员，不是短跑运动员。
- The runner spurted for the line. 赛跑运动员向终点冲刺。
- Mr. Smith, late of the UN Secretariat. 以前在联合国秘书处服务过的史密斯先生。
- Tom was closing on the leading runner. 汤姆逐渐追上跑在前面的人。
- The runner spurted as he approached the line. 那赛跑选手在接近终点线时加速冲刺。
- A low and fast throw made to put a base runner out. 快速低球棒球比赛中为把跑垒员杀出局而掷出的低而快的球
- In "under", the main stress is on "un". 在“under”这个词中，重读音节在“un”上。
- A long-distance runner must be long-winded. 长跑运动同必须做到能跑长距离而不会上气不接下气。
- What do the letters UN stand for? 字母UN代表什么?
