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- four surfac contac lens 四面接触镜
- The result of the comparison between the effectiveness of four surface sterilants, i.e., H2O2, Br2, NaClO and HgCl2, shows that HgCl2 is the best of all. 实验通过H2 O2 、Br2 (溴水 )、NaClO、HgCl2 四种表面灭菌剂对亮毛杜鹃灭菌效果的比较 ,得到HgCl2 的灭菌效果好 ;
- This paper describes four surface modeling methods being perspective for CAD/CAMapplications,which are scattered data interpolation Gregory patch ,free-form deformation andpartial differential equation methods. 本文叙述可望在近期内进入CAD/CAM系统的4种曲面造型方法，即散列数据插值曲面、gregory的曲面构造方法（gregory曲面片）、自由变形技术（FFD）和用偏微分方程方法构造曲面（PDE）。
- It is clear to all of us that two plus two is four. 二加二等于四对我们大家都很清楚。
- He wove four plots together into a novel. 他把四条情节编成一部小说。
- We have tea at four o'clock in the afternoon. 我们在下午四点钟喝茶。
- The town boasts four swimming pools. 这座城镇以拥有四个游泳池而自豪。
- Our football team won by four goals to nil. 我们的足球队以四比零取胜。
- He lay back and hit the ball for four. 他向后弯身击中球，得了4分。
- I was clean broke in less than four days. 不到四天我就一个钱也没有了。
- I'll look out for you at about four. 我4点钟左右找你。
- He showed us four case studies of disturbed girls. 他给我们看了4位精神失常姑娘的病历。
- My house is four miles distance from the sea. 我家离海四英里。
- Our team beat them hollow by four clear goals. 我们队以净胜4分彻底击败了他们。
- The leap year comes around once in four years. 每四年有一个闰年。
- The soldiers counted off from the left by four. 士兵们从左起四个一组大声报数。
- He wooed four girls before finally marrying one. 他在结婚之前曾向四个姑娘求过婚。
- Four avenues radiate from the square. 四条林荫大道从那广场向四方延伸。
- There are four verses in each poem. 每首诗有四个诗节。
- This recipe will be enough for four servings. 本食谱为四人食用分量。
