查询词典 keep sb. at a distance

To keep sb/sth alive, or safe from harm or danger 使继续存活;保护;保全 VN ~ sb/sth The society was set up to preserve endangered species from extinction.

成立这个协会是为了保护濒危物种不致灭绝。 reserve有主动去防止，去保存，去储备的意思 conserve有抵御外界损害力量的意思，环形抵御，全方位因为构词成分是con－ preserve也是被动的保有某种状态，侧重于状态的无变化

Keep up / keep sb. up / keep up with / catch up with

keep up继续，维持；振作，使不低落

Keep one's distance; keep at a distance

栽种向日葵的行间距离要宽。

As for a friend who is unfamiliar to you,Chinese should keep a distance of less than one maters, while Americans are supposed to keep a distance of 1.2-3.5maters.

在中国，当一个陌生人接触我们时，对我们来说是很正常的，但是对于美国人。

Keep at a respectful distance from sB.

欢呼声在远处逐渐消失。

Optimal screw path length: The distance from the optimal entrancepoint to the optimal vent point Screw tail distance: The distance between left and right optimalentrance point Transverse section angle: Half of the included angle between left andright optimal screw Sagital section angle: The average of angle between both side optimalscrew with the upper terminal plate 1.2.2 Modify the threshold of CT value to distinguish the rear partof the lumbar, Observate the the optimal entrance point and the adjustable range.

1.2.2三维重建观察螺钉最佳进钉点的位置和各方向螺钉进钉点关系，调整CT值下限阈值使椎弓后部结构尽量显示清晰，以利观察。 1.3统计方法本实验采用SPSS13.0统计软件。对同一椎体左右两侧椎弓根螺钉相对数据行计量资料配对样本t检验，对男女组间相关数据行计量资料独立样本t检验，对男女组内不同腰椎节段间相关数据行单向方差分析及不同腰椎节段间LSD法多重比较。

Only when the distance is well controlled can readers immerse in the fictional world and at the same time discriminate the work from reality, examine and comment the characters and the circumstances objectively in a more widely view. Then a sense of aesthetics can be acquired by reading the work. This thesis is going to analyze the aesthetic distance in The Adventures of Huckleberry Finn, which is always regarded as Mark Twain's masterpiece. It embodies great artistic appeal and is one typical example in the masterly control of aesthetic distance. The thesis is divided into three chapters. Chapter One demonstrates various distances presented in this novel.

只有恰当地控制审美距离，读者才能融入作品，同时能够将作品与现实区别开来，以更广阔的视野和冷静客观的态度去审视、评品小说中人物的言行及其所处的环境，从而对其有更全面深刻地认识，感受作品的美学效果本文运用韦恩·布斯的"审美距离"理论分析了马克·吐温的杰作《哈克贝里·费恩历险记》中的审美距离及其带给读者的独特的审美体验。

That indicated the availability of SRAP technique in studying genetic variability in Arachis. Estimates of genetic distance among the 28 accessions Arachis section ranged from 0.12 to 0.75 with average genetic distance of 0.42. A genetic distance clarified that A-genome A. duranensis was most closely associated with tetraploid germplasm, which could be A-genome donors. Dendrogram of cluster analysis classified 28 accessions Arachis section into two groups: one including tetraploid germplasm, and A.

聚类分析表明，28份花生材料间的遗传距离变幅为0.12~0.75，平均为0.42，A基因组物种Arachis duranensis与栽培种花生的亲缘关系最近，可能是栽培种花生的A基因组的供体。28份种质分为两大类，第一大类包含四倍体种质及A基因组的A。

Then we calculate the distance between the given picture which is pretreatment and the character in the library, and make the distance be sort ascending and choose the first three pictures. Then, we see that whether the distance is in a certain range. If yes, then we continue in this output within the scope pictures.

然后计算预处理后的待检索图片与特征库的欧式距离，由小到大排序，选择前三的图片，再看欧式距离是否在一个范围内，如果是的话就继续输出在此范围内的图片。

For example:– at 30 m distance an audible signal is given;– at 20 m distance the crane speed is decreased;– at 5 m distance the final stop signal is given.

–在30米处发出可听信号；–在20米处起重机减速；–在最后5米处发出停车信号。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。