查询词典 spacecraft

Demolition experts in the Florida Keys used explosives to sink a ship last used by the US Air Force to track missiles and spacecraft. The General Hoyt S.

佛罗里达群岛的爆破专家用炸药击沉一艘军舰，这艘军舰最后一次使用是美国空军用来追踪导弹和宇宙飞船。

Demolition expert s in the Florida Keys used explosives to sink a ship last used by the US Air Force to track missiles and spacecraft.

爆破专家在佛罗里达天涯群岛利用爆炸物使一艘船只下沉，该船最后服役于美国空军用于跟踪导弹和太空船。

Space environment threaten orbited spacecraft' s safe functioning and astronaut' s health, influence greatly communication depended on based-space way, airmanship orientation, military detection, aim identification, weather observation and source exploration and so on by all sorts of function (magnetic storm, solar proton event and so on).

空间环境通过各种效应(如磁暴、太阳质子事件等)对在轨航天器的安全运行及航天员的健康构成了严重的威胁，对依赖于天基手段的通信、导航定位、军事侦察、目标识别、气象观测、资源勘探等等均有重要影响。

As recently as last November, in its last encounter with a Jovian moon, tiny Amalthea, the spacecraft " got hammered again by radiation," Dr. Alexander said.

去年十一月份，在它的最后一次与木星的卫星木卫五相遇时，"飞船又被辐射给破坏了，" Alexander博士说。

Spacecraft attitude dynamics and the analytic and numerical methods for studying chaotic motion in engineering systems are respectively surveyed.

概述了航天器姿态动力学的研究内容和研究工程系统中混沌运动常用的解析和数值方法。

Shadow effect can not be neglected for thermal analysis of spacecraft,Accroding to the angle between solar light and antenna orbit plane and its orbit location,analytical geometry method was used for accurately calculating solar radiation heat flux distribution of reflector surfaces.To analyze the temperature field under heat flux,the formulations of net radiation flux density between two gray elements and the net flux density of gray surface under external thermal flux were deduced.Based on the characteristic of space environment,the nonlinear temperature distribution in transverse direction of reflector shell self radiation were considered,the finite element formulations were given for orthogonal material layered shell by Galerkin method.A layered element including a inner heat source layer was proposed,and the finite element formulation expressed by DOF of the inner heat source layer were put forward with temperature and heat flux boundarys between adjacent layer.

单馈反射面赋形天线是未来星载天线发展的一个重要形式，分析了基于物理光学、几何光学和几何绕射理论的理想反射面辐射场；介绍了基于几何光学的反射面天线赋形方法；针对赋形过程中辐射场的快速分析要求，比较分析了基于物理光学的Fourier-Bessel和Jacobi-Bessel级数展开方法以及GB展开分析方法；利用GB展开快速分析方法在20GHz频率下对0.6m口径的天线进行赋形分析，实现中国大陆的30dB增益覆盖，通过数值计算研究了固定增益期望下的口径尺寸随频率的变化，以及频率为20GHz的不同尺寸天线赋形后的覆盖目标区域最大增益的变化情况。

Some time later, Andros retreived keycards from an alien casino, which showed him the location of the Mega Voyager, five spacecraft which assembled into a Megazord.

不久之后，安德鲁斯从一个外星赌场里再度喜获了指明五架能够合成佐德的巨能航行者所在地的钥匙卡。

Based on the spherical and plane triangular relationships of the spacecraft, the center of the earth, the projected-cloud and the true-cloud, several error analyses were done for the computing of parallax with different intersection angle of crafts, and incorrect images match.

利用卫星、真云、投影云和球心的平面球面几何关系，在几何反演方法的基础上，对卫星间隔和图像错误匹配带来的反演误差进行了分析。

Based on the spherical and plane triangular relationships of the spacecraft, the center of the earth, the projected-cloud and the true-cloud, several error analyses were done when one pixel was incorrectly matched with different intersection angle of crafts and the same cloud height.

利用卫星、真云、投影云和球心的平面球面几何关系，在几何反演方法的基础上，分析了在固定云高、不同卫星间隔和固定卫星间隔、不同云高这两种情况下，错误对比1个像素导致的可能的反演误差。

Ansari reportedly paid US$20 million to become the fourthprivateastronaut to take a trip on a Russian spacecraft and visitthestation.

据悉，安萨里为此次太空行花了2000万美元，并成为史上第四位乘坐俄制飞船遨游空间站的太空游客。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。