例句與造句

1. The length contraction section needs a clarification of the difference between observer / frame velocity / direction effects, seldom challenged, and actual physical shrinkage of objects and the distances between them.
2. Minkowski spacetime is defined for  inertial, or uniformly moving, frames as one whose scales measure all  light waves at the same light speed, regardless of its frame velocity.
3. Note that after release in the spin frame that the centrifugal component ( light blue ) is always radial, while the Coriolis component ( green ) is always perpendicular to spin frame velocity.
4. It's difficult to find frame velocity in a sentence. 用frame velocity造句挺難的