查询词典 keep one's distance from

The new technique reduced the distance ladder to three "rungs":(1) The distance to galaxy NGC4258 is measured using straightforward geometry and Kepler's laws;(2)Cepheids in six more distant galaxies are used to calibrate the luminosity of Type Ia supernovae;(3) The Hubble constant is measured by observing a brighter milepost marker, Type Ia supernovae, in more distant galaxies hundreds of millions of light-years away, embedded in the expanding universe.

这种新技巧简化了距离跳跃为三个&阶梯&：1、星系NGC 4258的距离采用开普勒定律和简单直接的几何方法精确测量；2、在6个更远的星系中的造父变星用来校准Ia超新星的光度；3、深嵌于数亿光年外的膨胀宇宙中的星系中的Ia超新星——一种遥远而明亮的量天尺，被用于精确测定哈勃常数。

Based on this, four DBP concentrations(0.38, 0.85, 1.90, 4.25mg·L-1)were confected using the same distance of logarithmic distance, and 20 days' sub-acute toxicity test was carried out. The weights of the liver and gill of B. rerio were measured every 5 days.

在此基础上，等对数浓度差设置4个质量浓度0.38、0.85、1.90、4.25mg·L-1进行20d慢性染毒，期间每5d测定斑马鱼的体重、肝重和鳃重，同时测定斑马鱼肝脏、鳃中SOD酶和ATPase活性。

The distribution of low order images is not continuos in space, the distance between effective images and receiver should be larger than source-receiver distance.

本文对厅堂中声像空间分布的研究指出，接收点上反射声序列的时间分布与其在厅堂中的相对位置及厅堂的体形有关。

The wind can carry a rocket a great distance during its descent by parachute, and from a distance, it really is difficult to judge just how far downrange touchdown occurred.

风，可携带火箭一个伟大的距离，在其后裔的降落伞，从距离，实在是难以判断刚才有多远downrange落地发生。

The assurred operating distance takes into account all the external influences and sample variances and is in the range from 0 % to 72 % of the service usable distance.

经营距离的assurred考虑到所有的外部影响和样本方差，从0％的范围，以72％的服务可用的距离。

Therefore it can adjust the filter factor of the stereo sound according to the distance, thereby no matter the distance from the terminal machine to the user, it can get the same stereo sound effect.

因此能够根据距离对立体音响的过滤系数进行调节，从而使终端机无论与使用者位于什么样的距离，都能够获得相同的立体音响效果。

AC flashover voltage, voltage gradient along the leakage distance and the valid creepage distance of polluted insulators are related to its materials and configuration.

人工污秽绝缘子的闪络电压、污闪电压梯度和有效爬电系数均与其材质和型式有关。

Based on the crossing data among these flatfishes, the relationship between pairwise genetic distance and hybrid fitness was evaluated. The findings indicated that positive relationship might exist between genetic distance and hybrid fitness. The pairwise genetic divergence between species decreased as the interspecific hybrid fitness largened. These results implied that speciation clock might exsit in Pleuronectiformes.

根据这几种鲆鲽鱼的杂交是否可行的试验结果，评价种间遗传距离与杂交可适度的关系，结果表明，这8种鲆鲽鱼类的种间遗传距离与杂交可适度呈显著的负相关(r2 = 0.805，P 0.01)，即种间遗传分化越大，杂交成功的可能性越小，这表明鲆鲽鱼类中可能存在物种进化的不亲和钟。

Apart from greater tensile strengths of the belt, greater material flows also necessitate higher drive capacities which have to be transmitted through friction contact to the belt, Because of the large deadweight of the belt, a mainly horizontally arranged long-distance belt conveyor system with tail pulley drivel units requires, for distance, a high running idle capacity.

除了更大的拉伸强度的安全带，更大的物质的流动也需要更高的驱动能力，必须通过摩擦接触到带，由于载重量大的皮带，主要是横向排列长距离带式输送机系统的尾巴滑轮胡说单位需要，进行远距离，高运行生产能力闲置。

A laser sensor is moved along the profile by a linear unit to record the profile. The computer picks up the profile by simultaneous recording of the travel distance and the laser distance values and then the characteristic variables such as wheel flange thickness, wheel flange height, wheel flange width, qr dimension and wheel gauge are measured.

一个激光传感器沿着车轮外形作线性运动并记录表面数据，计算机通过记录扫描运行距离和激光距离数值得出车轮表面外形数据，以及特征变化参数，例如车轮轮缘厚度、高度、宽度，方位及车轮规格尺寸。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。