isobarism

例句：

1. 1. The isobarism of the atmosphere is a result of the sun's heat.
   大气的等压线是由于太阳热量造成的。
2. 2. The isobarism of the ocean floor is a result of the pressure from the water below.
   海洋底部的等势线是水压的结果。
3. 3. The isobarism of the Earth's surface is a result of the weight of the atmosphere above it.
   地球表面等势线的结果是大气层上方的重量。