同轴的

In my study, we use a 4F acoustic lens which f-number is 1.3 to set up a photoacoustic imaging system. With same axial and lateral magnification, 3D photoacoustic imaging system with 4F acoustic lens can detect photoacoustic signal distribution on object plane in real-time, and get the different axial distance signal to show the 3D photoacoustic image by different signal receiving time.

本研究采用相对孔径为1.3的4F声透镜，设计三维光声影像系统，利用4F声透镜景深范围内之轴向与横向放大倍率相等，即时性的重现物平面所发出的同调性光声讯号分布，并利用不同的接收时间来呈现不同深度距离的讯号成像，取得物平面上受测物的三维光声影像。

As a result of tube body''s revolvingthe steel ball movement, the material to the discharge end proliferation, from leaves the material the midheaven journal to discharge finally gradually, mainly by the round column casing body, the backing, various warehouses board main axle altar, the charging device, the reduction gear, actuates the electrical machinery, the electrically controlled cabinetso on composes, the company obtains the outstanding enterprise to reward many times with the heavy contract defends the credit enterprise, the post-sale service Advanced unit, is Shicheng County''s Key enterprise, the metallurgy profession dressing machinery''s Shareholding system, Our companythe national various Scientific research Unit carries on the close exchange cooperation.

由于筒体的旋转和钢球的运动，物料逐渐向出料端扩散，最后从出料的中空轴颈排出，主要由圆柱筒体，衬板，各仓板主轴承座，进料装置，减速器，驱动电机，电控柜等组成，公司多次获得优秀企业奖和重合同守信用企业，售后服务先进单位，是石城县的重点企业，冶金行业选矿机械的骨干企业，我公司与全国各科研单位进行密切交流合作。

But on a personal level it will be more strongly expressed where there is found an angle or a strong planet or multiple planets in the same sign; and the positive and negative sign potentials will be brought out by harmonious and inharmonious aspects to the PE in the figure.

但就个人的层次来说，若在PE所在星座中发现轴点，重要行星或者是行星群的话，那么这个星座表达出的含义将更加强烈些；此星座正负面的潜质将会由同PE和谐的或不和谐的相位表达出来。

Results indicate that even caverns significantly smaller than 1/4 wavelength are detectible on conventional band-width seismic sections as diffractions migrated into bead-type events.

结果表明当绕射波偏移为珠子状的同相轴时即使远小于四分之一波长的溶洞在常规带宽的地震剖面上也是可分辨的，绕射波是溶洞高度和宽读的函数。

Based on the analysis of sequence stratigraphy and seismic stratigraphy of carbonate platforms, especially to the ones in Dongsha and Xisha, this dissertation has identified, for the first time, three major and several minor drowning events of the platforms since Tertiary. Drowning events in the four carbonate platforms, especially in Dongsha Platform, coincide with major global eustatic cycles raised by B.

在经过高技术处理的地震剖面上，淹没层序的特征是顶部同相轴呈光滑的双轨连续强反射，特殊处理后表现出高波阻抗、高密度和强瞬时振幅等特征，还表现为高的速度梯度值和高的剩余速度梯度值，甚至在局部区域出现本层层速度比下部地层层速度高的现象。

The results of simulation experiments for single channel data or arbitrary channel of multi-channel data show the clearer event, the better wave shape and the higher SNR compared with the conventional convolution filter and common SVR based on RBF. So it is possible that SVR based on Ricker wavelet kernel function is applied to suppressing noise in seismic prospecting data.

对单道记录或多道记录中任选道的仿真实验表明，与传统的基于径向基核函数的支持向量回归及褶积滤波方法相比，使用本方法去噪后的同相轴更为清晰，波形恢复得更好，信噪比也较高，因此有可能将其应用于地震勘探记录的去噪处理中。

The findings: with the apparent dominant frequency of the Ricker wavelet rising, the detection SNR will get worse gradually, it is obvious that the variety of the SNR is slower during the portion of high frequency than during the portion of low frequency; in the usual range of seismic prospecting frequency, the SNR of the chaotic oscillator detection system could partially make up the amplitude attenuation aroused by the transmit of the seismic wave; the results could provide help for detecting the event constituted by aberrant wavelets.

本文以Ricker子波模拟地震子波，研究Ricker子波视主频变化的相应检测效果。研究结果：随着Ricker子波视主频的升高，检测SNR逐渐变差，在高频部分SNR的变化明显比低频部分缓慢；在通常地震勘探频率范围内，混沌振子系统检测SNR有可能部分补偿由于地震波传播引起的幅度降低；为检测由畸变子波构成的同相轴提供一定的可能。

Simulative results show that the electron beam can be transported in the unmagnetized plasma-filled for two reasons. The first, the plasma neutralizes the majority of the space charge forces within the beam. The second, radial electric field generated by electron beam interaction with the plasma leads the beam to converge along axis. By PIC simulation, we find that atomic mass of the background ion effects on the Characteristics of the plasma-filled devices.

非磁化等离子体填充的RBWO-FEL的模拟表明只有在一较窄的背景等离子体密度范围内，电子注才能良好传输，产生泵波及激光功率输出，并都存在有峰值功率点，同实验观测到的结果完全吻合；该范围内，电子注的传输是由于背景离子中和了注中径向发散空间电荷力及注在等离子体中产生的径向的电场使注在轴向汇聚。

The efferent projections of hypothalamic and brain stem nucleuses to nucleus dorsalis nervi vagi were studied by means of the retrograde axonal transport of HRP technique in cats.

本文用HRP轴突逆行输送法，对猫下丘脑和脑干一些核向迷走神经背核的传出投射进行了研究。将HRP注射至迷走神经背核后，较多的标记细胞见于同侧下丘脑的室旁核、背内侧核以及中脑的中央灰质和被盖腹内侧区。

Sea RATion Factory:This building cooks up corn into sea rATions to be eATen by pirATes AT sea.

真正的英国同那种头戴黑色圆顶硬礼帽、手持辊轴伞的绅士们是无缘的，它倒更接近于那种海盗旗帜上画的骷髅和交叉大腿骨形象。

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。