查询词典 keep one's distance from

The study of the distance education system of the college physics is a kind of alternant software of teaching. The system can improve knowledge and ability of students on Internet. Because it uses the object to show fabricated instrument,so we can finish the experiment by landing the distance education net.

大学物理实验远程教育系统是采用 3DMAXflashMX及网络编程技术开发的具有交互式的教学软件，该系统能使学生在Internet上，通过登陆远程教育网站，利用实物显示的虚拟仪器完成大学物理实验，提高学生的实验能力和学习兴趣。

Quantifying similarity/difference between two objects plays an important role in many contexts The quality of the similarity/difference scores can be improved by considering the semantic information related to the features of objects A flexible semantic distance function called X Dist is proposed, which can utilize the semantic information to measure the difference between two objects based on a solution to the transportation problem from linear optimization With a ground distance function for single features being a metric, X Dist is also a metric This property is very useful for making searching efficient, but is not investigated in the previous research Moreover, the experimental results show X Dist can be as good as the previously studied similarity measures in nearest neighbor searching, discriminative power and computing speed

量化对象间相似性/差别的方法具有广泛的用途，利用相关的语义信息能够得到更好的量化结果提出了一个量化对象间语义差别的距离函数XDist，它基于线性优化中的运输问题模型和相关的语义信息量化两个对象之间的差别在量化特征的差别函数是度量的情况下，XDist是一个度量，在提高搜索的效率方面具有优势，弥补了以往研究的不足，而且实验初步表明，此函数在最近邻查询效果、差别分辨力和计算速度方面能与已有函数相媲美1 引言量化对象间相似性/差别的方法具有广泛的用途，例如数据挖掘中的聚类；信息检索中的相似文档查询；协同过滤中的相似用户查询；CBR中的相似案例查询集合是对象特征表示的常用结构，集合的元素是与对象特征相关的项，它们可以

According to the localization principle of the DV-Hop algorithm, this paper proposes three improvements including the estimation of average single hop distance, the calculation of distance between unknown nodes and reference nodes and the estimation of node positions. These improvements can be used independently or jointly to replace the corresponding steps in the DV-Hop algorithm. The localization performances are analyzed in theory and with simulations.

该文根据DV-Hop算法定位过程，在平均每跳距离估计、未知节点到各参考节点之间距离的计算和节点位置估计方法等3个方面进行了改进，分析和仿真了不同改进措施和综合改进的定位性能。

A long stretch is more feasible for very tall long-limbed male distance swimmers but not exhibited by most of the world's best female distance swimmers.

一个长的伸展可能适合一个高个儿的，四肢很长的男性长距离游泳运动员，但对于世界上最好的女性长距离游泳运动员来说却不一定能够实现。

But Gabriel ascended with him for a distance above that, the distance of which only Allah knows, till he reached the Lote Tree and then the Irresistible, the Lord of Honor and Majesty approached and came closer till he was about two bow lengths or nearer.

但加布里埃尔登基与他，距离上述表示，距离其中只有真主知道，直到他游到地段树，然后再由不可抗拒的原因，主的荣耀和英国接洽，并于紧密到他的约两鞠躬长度或近了。

By using the Earth-sun distance as his baseline, Copernicus relied upon the magic of geometry to figure out that Jupiter is over 5 times the Earth's distance from the sun!

通过使用地球太阳的距离作为他的基线，哥白尼依赖于几何学的魔术指出木星与太阳的距离是地球与太阳距离的两倍。

Wherein a is half of the distance of major axis and b is half of the distance of a minor axis.

其中a是主轴长度的一半，b是副轴长度的一半。

Horizontal distance, difference in height and slope distance are calculated. Coordinate file data and manual input data are available to be used.

本程序可计算上述两种情况的平距、高差和斜距，计算可以使用坐标文件数据和手工输入数据。

Results:① The distance between handle of malleus and stapes head was(2.38±0.19)cm(2.00～2.70cm), the point selecting for measuring was outer margin of handle of malleus and stpes head.②The cross section form of one_third of the handle of malleus at the end, was triangle, the anteroposterior diameter of handle of malleus was(0.79±0.12)mm, the exterior and interior diameter was(0.58±0.10)mm at the crook point,the angle of line of manubrium mallei laid(83.24±8.33)°(66～98°)posteroinferior to arch of zygoma.③The long axis of prosthesis formed(27.60±1.75)°(24.6～30.2°)angle with the perpendicular of stapes.④The dependablity between the malleus_stapes distance and transverse diameter of tympanum, the location of umbo in tympanic membrane, the diameter of manubrium mallei, angle of line of manubrium mallei and arch of zygoma were not statistically significant.

结果：①锤_镫距离最短为(2.38±0.19)cm(2.00～2.70cm)，测量点为锤骨柄末端1/3处外缘和镫骨头；②锤骨柄末段1/3横断面形状接近三角形，弯曲处前、后方向直径为(0.79±0.12)mm，内、外方向直径为(0.58±0.10)mm；锤骨柄与颞线的成角为(83.24±8.33)°(66～98°)；③赝复物长轴与镫骨垂直方向成角平均为(27.60±1.75)°(24.6～30.2°)；④锤_镫距离与鼓室横径、鼓脐在鼓膜上的位置、锤骨柄直径、锤骨柄的方位的可能相关因素之间相关性检验无统计学意义。

The moving distance should be limited with the largest change rate of sink node coverage or the mathematical expectation of moving distance.

移动的距离可以采用以汇聚节点覆盖最大变化率限制移动方式和以距离的数学期望限制移动方式进行。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48