成双成对的

The bifocus lens could produce images at the two independent focal length respectively and recovery the object's depth information according to the two bifocal images,which is the principle of depth estimating using bifocal lens.

成像物镜具有两个独立的焦距，通过对空间物体成像并进行分析可获取其深度信息，此即双焦测距的原理。

III Investigations of ferromagnetic alloy films by XMCD1. By using XMCD and SQUID magnetometry, the spin and orbital moments of Fe and Co in the Co_(0.9)Fe_(0.1)(50nm) are studied. Compared with single-element film, the spin moment of Co remains constant while that of Fe reduced from 1.98 to 1.63μB. The contributions of different elements in the film is, m_ : m_ - 10.5 : 89.5. The average magnetic moment (1.90μB) determined by XMCD is in agreement with that (1.82μB) obtained from SQUID measurements. Utilizing XMCD spectra in-plane element-dependent magnetic anisotropy in Co_(0.9)Fe_(0.1) films has been investigated. Apart from known field-induced easy axis during film growth, a soft axis perpendicular to it was observed, and hard axes are 66° away from the easy axis.

利用XMCD谱研究了50nm Co_(0.9)Fe_(0.1)薄膜，结果发现：样品中Fe、Co元素对磁化强度的贡献比为10.5∶89.5；由XMCD获得的合金平均原子磁矩1.90μ_B与用SQUID磁强计得到的合金平均原子磁矩1.82μ_B基本相符；对Co_(0.9)Fe_(0.1)薄膜面内元素分辨的磁各向异性的研究发现，除了在生长的磁诱导方向存在易磁化轴外，与该轴垂直的方向还存在一个类似易轴的软磁化轴；面内的两个难磁化轴与易磁化轴取向大约成66°夹角，构成面内双轴磁各向异性，并根据XMCD结果对面内双轴形成的原因进行了分(来源：Ad2BC82论文网www.abclunwen.com)析。2。

As the maneuverability of the model of 800 t ship with double tail fins didn′t meet the design standard,this article turned the twin skeg of the models into tail-shaft strut,and then made tur-ning tests and Z shape tests.

针对某一采用双尾鳍形式的800 t级排水船在进行自航模试验时出现操纵性能不能满足设计要求的情形，文中将其尾部的双尾鳍改成轴支架，并在某露天操纵性水池中，对改进后的自航模进行了回转和Z形操纵试验，通过对实验结果进行比较发现合理设计轴支架的大小和安装位置能够较好地改善800 t级排水船的操纵性能，并能够满足给定的船舶操纵性能设计要求。

First, different types of graphite being chosen as raw materials are pressed into dipolar plate, which was analyzed and compared.

首先，通过选取不同类型的石墨来改性酚醛树脂，压制成双极板，并对改性酚醛树脂制成的双极板性能作了分析和比较。

But the grain growth, grain semiconduction and grain boundary insulation were influenced by many factors, such as the type and contents of dopants, sintering temperature and so on. Therefore, in this thesis the effect of the restore sintering temperature, the oxygenize temperature, the donor and acceptor dopant on the dielectric and varistor properties of devices were studied. With SEM, the microstructure of SrTiO3-based double function ceramic was analyzed.

而晶粒生长、晶粒半导化和晶界绝缘化受到多种因素的影响，诸如杂质的种类和含量、烧成温度等，因此本论文研究了还原烧成温度、中温氧化温度、施主和受主掺杂等对SrTiO_3基陶瓷的压敏和介电性能的影响，并借助于SEM分析对SrTiO_3基双功能陶瓷的微观结构进行了分析。

In the past, bangles were often made in pairs, in the belief that good things always come in twos.

过去，手镯和戒指都是成对设计制造的，这是因为人们坚信好事总是成双的。

Under the selected separation conditions, a high recovery of bromelain was obtained from the mixed fluid.

通过实验测定了SDS和CTA日水溶液混合体系双水相的相图，考察了温度和外加盐NaBr对双水相形成区域的影响。

"Double images", literarily,"double" means "in pairs";"image" means "appearance","figure" and "looking", and it also has the meaning of "examination","observation" and "the result of comparison".

&双相&，在字面上的意义，&双&具有成对的意思；&相&，既有容貌、外形、模样之意义，又有审视、察看、两者共同说明比较之结果的意义。

A film-forming additive, vinyl ethylene sulfite with both vinylene group and sulfite group, affects the electrochemical performance of carbonaceous mesophase spherules and LiFePO4 electrode.

研究了具有不饱和双键和亚硫酸酯双官能团的乙烯基亚硫酸乙烯酯作为锂离子电池电解液成膜添加剂对中间相碳微球和LiFePO4电极电化学性能的影响。

To meet the demand of the 60 nm spatial resolution,the zone plate imaging technology must be employed.

在X射线成像光束线光学系统的设计基础上，对光束线的能量分辨率和光子通量进行了计算，并对双晶单色器第一块晶体的热载影响进行了模拟分析，同时利用波带片成像技术对实验站进行了设计，达到了60 nm的空间分辨率。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。