spacecraft造句
91. The number of trips that can be expected for a spacecraft that transports water back from an asteroid is difficult to estimate.
92. For example, consider a spacecraft flying in an elliptical orbit and burning its engines at the moment it reaches perigee.
93. Posi gave the warning - spacecraft approaching - and the screens flashed up the images.
94. A spacecraft passing through its perigee point is moving faster than an equivalent craft on a circular orbit of the same radius.
95. Ground-based data as well as the latest information from the Pioneer and Voyager spacecraft are used in developing both physical descriptions and theoretical understanding.
96. A spacecraft at point A carries out a burn that increases its horizontal velocity.
97. A great tearing sound and the rocket section at the rear of the spacecraft pulled away.
98. Long before spacecraft missions first explored the Moon, speculation on the origin of the lunar craters abounded.
99. The 975-kilogram Magellan spacecraft was launched in May of 1989 and arrived at Venus in August of 1990.
100. The spacecraft enters into a more eccentric orbit, however the height and position of perigee remains the same.
101. In February of 1961 two more spacecraft of this type were placed in closely similar orbits.
102. Ross ever. the principle of nuclear engines was successfully tested and they remain good candidates for long-term development in interplanetary spacecraft.
103. Apolune is the point on the orbit where the spacecraft is furthest from the centre of the Moon.
104. From 1960 to 1965 the Soviets launched twenty-six known spacecraft into deep space.
105. Only incoming or outgoing spacecraft were allowed in its air-space.
106. In terms of the demands placed on spacecraft propulsion systems, Uranus is easiest and Neptune is second.
107. The spacecraft is covered in a material that acts as a heat shield.
108. Under normal circumstances the spacecraft would not be manoeuvring so violently that this would be a problem.
109. But full acceptance of the importance of large impacts on Earth had to await the exploration of the solar system by spacecraft.
110. No spacecraft has ever moved faster than a small fraction of this speed.
111. A rocket motor failed and the spacecraft did not reach its intended orbit.
112. Mission designers are very thorough in eliminating any excess weight from the spacecraft.
113. The need to use range-Doppler methods is obviated where radar equipment is carried near to a planet by means of a spacecraft.
114. The two Viking spacecraft reached Mars successfully.
115. How do you power a spacecraft in deep space?
116. The spacecraft a successful reentry into the earth's atmosphere.
117. The spacecraft was fitted with a heat shield.
118. I'm detached and moving toward the derelict spacecraft.
119. The Viking spacecraft consisted of two orbiters.
120. Spacecraft control laws for volte-face reentry motion are explored.
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