查询词典 concentric

It is concluded that the precision of these points is attenuated equidistantly as concentric circles. Its center is the weighted average of the coordinates of known points with the radius determined by the precision, the quantity and the distribution of known points. The precision of station points is almost independent of intersection angle, and the precision of known points is almost independent of station point. In some circumstance, the detail points may be more precise.

对测站精度、细部点精度分布规律进行了分析，结果表明：测站精度和细部点精度均呈同心圆向外衰减，圆中心在已知点的加权平均中心上，半径决定于已知点的精度、数量与分布；测站精度与测站的交会角几乎没有关系，细部点精度与测站的位置几乎无关，且可能高于测站精度。

The approximate solution is used to estimate the performance of concentric annulus.

因此，用于冷却的表面传热系数应在Bi数小于10的范围内选取。

The composition of minerals, mostly aragonite and a concentric laminated structure.

其组成矿物多为文石，并具同心纹层状构造。

The present invention provides a direct-type backlight having: a resin sealing member including at least one resin layer, which has a light reflecting section formed on the outermost surface of the resin sealing member; an optical semiconductor element sealed by the resin sealing member; and plural circular light scattering grooves formed concentrically on at least one surface of the resin layer, wherein an area of a circle in the center and an area among the respective concentric circles are substantially the same.

本发明提供了一种直下式背光，包括：树脂密封元件，其包含有至少一个树脂层，该树脂层具有形成在所述树脂密封元件最外表面上的光反射部分；由所述树脂密封元件密封的光学半导体元件；和以同心圆形式形成在所述树脂层至少一个表面上的多个圆形光散射凹槽，其中在中心的圆的面积与在各个同心圆之间的面积大致相等。

A slotted concentric cylinder carries a continuous solid wing across and in contact with the interior surface of an ovoid shell, shaped for exact diameter in all directions on the eccentric axis of revolution.

" "开槽同心圆柱体，带有连续固相荣跨越和联系，与内部表面一卵形壳，形状为直径的确切在各个方向上偏心轴的革命。

At first this paper introduces a new method which is named as the concentric circles cutting method of drawing terrain characteristic line on the basis of contour vector data, and has made the program design and realized to this method.

本文首先介绍了一种基于等高线矢量数据提取地形特征线的新方法——同心圆剖切法，并对该方法进行了程序设计与实现。

Although the application was developed in a field where conditions justified a bullhead squeeze down the existing completion tubing, well conditions in other fields may warrant the use of concentric or coil tubing to circulate the slurry to the perforations and then to squeeze the slurry into the zone.

虽然应用开发的一个领域条件有道理缘挤压下来完成现有油管，条件好，在其他领域可能需要使用同心圆线圈或油管分发泥浆向齿孔，然后挤压成浆区。

By the key element of optical system is the crystal of fluoride calcium the thickness of5mm, on which diamond tool substituted the concentric circles, which reflect and which focus the light, which falls into the outward flange 60- mm of objective.

由关键因素是光学系统的晶体氟化钙的厚度5毫米，其中金刚石工具取代的同心圆，反映并重点考虑，这属于外向法兰60 -毫米的目标。

Continue to use the above command to make a round, enter the center of a circle points (-40,-30), respectively, enter the radius value of 8 and 16, draw another set of concentric circles.

4继续用如上的命令作圆，输入圆心点（－40，－30），分别输入半径值8和16，画出另一组同心圆。

Given the terraced structure of the Greek theater, rising in concentric arcs, each spectator could quite literally survey the entire cultural world about him and imagine himself, in the fullness of seeing, as a chorist. Thus we are enabled to view the chorus of primitive proto-tragedy as the projected image of Dionysian man.

那末，照这一意义来说，我们不妨把原始悲剧最早阶段的歌队称为醉境中人的自我反映；这一现象最明显的例证莫如演员的体验：一个演员，如果真是有才能，总能见到他所扮演的人物栩栩如生地幌动在眼前。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。