例句與造句

1. The engineering challenges of creating a rotating spacecraft are comparatively modest to any other proposed approach.
2. Cornille, H . J ., Jr ., A Method of Accurately Reducing the Spin Rate of a Rotating Spacecraft, NASA Technical Note D-1420, October 1962.
3. JPL also investigated " ring sails " ( Spinning Disk Sail in the above diagram ), panels attached to the edge of a rotating spacecraft . The panels would have slight gaps, about one to five percent of the total area.
4. Consider a distant star observed from a rotating spacecraft . In the reference frame co-rotating with the spacecraft, the distant star appears to move along a circular trajectory around the spacecraft . The apparent motion of the star is an apparent centripetal acceleration.
5. In an arbitrarily rotating spacecraft, the curvature of space is due to two terms, one due to the mass density and one due to the arbitrary rotation of the spacecraft . The arbitrary rotation is non-physical and must be eliminated in any real physical theory of gravitation.
6. It's difficult to find rotating spacecraft in a sentence. 用rotating spacecraft造句挺難的