1. of or relating to or resembling the physical or orbital characteristics of a planet or the planets;

   "planetary motion"
   "planetary year"
   

2. of or relating to or characteristic of the planet Earth or its inhabitants;

   "planetary rumblings and eructations"
   "the planetary tilt"
   "this terrestrial ball"
   

3. having no fixed course;

   "an erratic comet"
   "his life followed a wandering course"
   "a planetary vagabond"
   

4. involving the entire earth; not limited or provincial in scope;

   "global war"
   "global monetary policy"
   "neither national nor continental but planetary"
   "a world crisis"
   "of worldwide significance"
   

1.行星的；与行星有关的
planetary means relating to or belonging to planets.

e.g. Within our own galaxy there are probably tens of thousands ofplanetary systems.
在我们自己的星系里可能有数以万计的行星系。

1.

1. 行星的：断层含有乙烯(ethylene)气体 所以让里面的人会有点兴奋或飘飘然的感觉(跟浓度有关) 也许能...马雅日历经确度相当高 据说比现在的日历还厉害 除了能推算月亮太阳的周期 更是能精确的推算其他行星的(planetary)周期其上面也作了许

2. planetary的解释

2. 今世的：logically論理上 |planetary今世的 | ingenuity賢明

3. 行星的,流浪的：39, Mammal 浦汝动物 | 40,planetary 行星的,流浪的 | 41, Fancy 想像力,想像