restricted proper motion

例句：

1. 1. The team's restrictedproper motion is a key factor in theirsuccess.
   该队的受限适当运动是他们成功的关键因素。
2. 2. The researcher found that therestricted proper motion of the planet was dueto its rotation.
   研究者发现，行星的受限适当运动是由于其自转造成的。
3. 3. The scientistused advanced technology to measurethe restricted proper motion of thecomet.
   科学家使用先进的技术来测量彗星的受限适当运动。