同轴的

"Natural stump toothpick box" lid and box body for the same section of a natural stump stump, stump wood fiber can be exquisite hard birch, mountain Cassia bark and other beautiful species, first in the face at some distance from the edge of a drilling location a certain depth of 3-5 mm diameter hole for the same species inlaid wooden shaft.

天然树墩牙签盒》盒盖和盒体为同树墩的一段天然树墩，树墩可用木质纤维细腻坚硬的桦树、山槐等树皮美观的树种，先在上端面边缘有一定距离位置钻一个有一定深度的直径3-5毫米圆孔，用于镶嵌同类树种的小木轴。

Based on the similarity of common reflection point trace gathers in one coherent zone, CRS stack can focus more energy on the vicinity of the reflector, and therefore can obtain a high signal-to-noise ratio zero offset section by stacking events with the same phase.

共反射面叠加利用了邻近多个共反射点道集的相似性，提高了资料的覆盖次数，从而压制了随机噪声，增强反射波同相轴的连续性，大幅提高了地震资料的信噪比。

Based on a review of the history of seismic stratigraphy, sequence stratigrapy, and seismic sedimentology, this paper discussed the status and future trend of the seismic sedimentology, and pointed out that 90° phase transformation and frequency division interpretation are just the two technical means rather than key techniques for seismic sedimentological studies.

结合地震地层学、层序地层学和地震沉积学的发展历程对地震沉积学的现状和趋势进行了探讨，认为90°相位转换和分频解释仅仅是地震沉积学研究的技术手段，而不是其关键技术；对于地震同相轴的穿时性问题，也仅存在于3级或4级层中，并且这种穿时性与"沉积物体分配空间"和"相异作用"有关。

Based on the comprehension of the researches of CO2 expressor, rolling piston expresser has been designed independently with the roilling pistons of expansion chamber and compression chamber integrated with the same shaft. Design parameters have also been calculated concretely

综述了国内外CO2膨胀压缩机的研究现状，分析了现有膨胀压缩机的技术特点，独立设计了膨胀腔活塞与压缩腔活塞同轴联接的滚动活塞式膨胀压缩机，同时，还进行了具体的参数计算。

You have to do the measurings only when both the digital comparator and the axis in measure focus bar are perfectly steady and exactly in the same points.

你不得不做测量，当数字比较器和轴的聚焦条在同一点是确定的、稳定的。

E. , semiconfocal, halfconcentric and plane-parallel geometries, and the mode properties and discrimination are studied by analyzing the coupling losses.

结果表明：当环间隙间距与其中心半径的比值较小时，在同轴波导激光器中的低阶振荡模是环向极化的。

This cone of concentricity and face runout vertical degree and CNC machine tools with a common location in a process out of the valve stem is easier to FILTER SERIES ensure design accuracy, while reducing the processing cost.

这样锥面的同轴度和端面的垂直度和跳动度用普通数控机床可以在一次定位中加工出来，阀杆的设计精度就比较容易保证，同时降低了加工成本。

Designed two years earlier, making use of the system of twin coaxial, contra-rotating rotors which dispensed with the need for a tail rotor.

两年前设计，制造的双同轴系统的使用，禁忌旋转转子的同一个尾桨需要配发。

Based on the integration of the results of acoustic andfluid dynamic analysis, this paper points out that synthetical acoustic and fluiddynamic performance of muffler can be obtained by using square expansion chamber,by stringing together several podgy expansion chambers, by applying noise absorbingmaterial on chamber walls, by making chambers and pipers co-axial, by adding filletson the end of intruding pipes, and by making the diameter of outlet pipe a little greaterthan the diameter of the inlet pipe.

通过综合流体力学和声学有限元两方面的分析的结果，指出了采用方形扩张腔，采用多个短粗扩张腔串联，扩张腔壁面附吸声材料，使各管道同轴，在插入管端口加上圆角，并且令出口插入管管径略微大于入口插入管管径可以使消声结构获得最佳的声学和流体力学综合性能。

A new station moving method based on multi-common-point is developed with respect to improve the measurement precision of coaxiality of large cylinder surveying with theodolites.

为了提高电子经纬仪测量大型圆柱构件同轴度的精度，提出一种基于多公共点的测量转站方法，使得电子经纬仪可以在不严格调水平的状态下进行测量。

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。