查询词典 spacecraft

The chaotic planar motion of rigid spacecraft on an elliptic orbit in the gravitational field with air drag and internal damping and its control are investigated.

研究万有引力场中受大气阻力且存在结构内阻尼的非自旋航天器在椭圆轨道上平面天平动的混沌及其参数开闭环控制问题。

Demolition experts 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群岛使用炸药炸沉了一艘曾为美国空军跟踪导弹和航天器服役的军舰。

In this 禁用词语, under the consi deration of the require of automatically testing loose partic les inside the relays in spacecraft, the engineering applicat ion is emphasized; the Virtual Instrument technique is u sed to study and practice the method of automatically detecti ng loose particles inside the relays in spacecraft.

本文从航天继电器多余物自动检测的要求出发，着重于工程应用，采用虚拟仪器的设计技术，进行了基于航天继电器多余物自动检测方法的研究与实践。

It is therefore of great significance for gyro-less spacecraft and can serve as a backup to increase system reliability for spacecraft with gyros.

这对于无陀螺的空间飞行器无疑具有重要的意义，对于有陀螺的空间飞行器，也可以用于备份，提高系统的可靠性。

It was also the first spacecraft to encounter two planets at close range, and the first spacecraft to photograph Mercury in closeup.

它同时也是第一个以近距离接近两个行星的太空船，还是第一艘近距离拍摄水星照片的太空船。

The fleet of international spacecraft have made in situ measurements in the heliosphere ranging from 0.3 to over 30 AU. This study take advantage of multi spacecraft observations and numerical models to investigate the propagation and evolution of interstellar CMEs and their affects on the interstellar space.

国际上飞船的就地观测已覆盖了从0.3 AU到超过30AU的广大日球空间，本项目利用多点卫星的观测和日球太阳风数值模型研究行星际日冕物质抛射事件在日球空间的传播、膨胀和演变的规律及其对行星际空间环境的影响。

Compared with spacecraft without human,manned spacecraft has some special techniques requires because of direct human involvements,including

1与无人飞船相比，载人飞船因有人类直接参与而在技术上有一些特殊的要求，包括

This article tries to give readers an elementary impression of the interaction of spacecraft and plasma (space plasma and plasma produced by the ion rocket engine) in a simple way, it also gives some advice to those who design spacecraft.

文章试图以一种较简明的方式让读者对航天器与等离子体（空间等离子体以及发动机产生的等离子体束流）的相互作用有一个初步的概念，并对航天器的设计给出几点建议。

We can imagine a spacecraft carrying a big area of him film to collect solar energy, with an ion?jet engine to produce thrust powerful enough to boost a spacecraft to a speed of 160 km a second.

我们可以设想一艘航天器，它装载着收集太阳能的巨大薄膜，并载有一个能产生强大推力足以使航天器加速到每秒160公里的离子喷气发动机。

We can imag a spacecraft carrying a big area of him film to collect solar energy, with an ion jet engine to produce thrust powerful enough to boost a spacecraft to a speed of 160 km a second.

我们 可以设想一艘航天器，它装载着收集太阳能的巨大薄膜，并载有一个能产生强大推力足以使航天器加速到每秒160公里的离子喷气发动机。

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。