imaginary line

基本解釋

The continental dividerefers to an imaginary line in the North American Rockies that dividesthe waters flowing into the Atlantic Ocean from those flowing into thePacific.
大陸分水嶺是指北美洛磯山脈上的一道想象線，該線把大西洋流域和太平洋流域區(qū)分開來。
edu.sina.com.cn
This will continue to happen until Earth's tidal bulges align with an imaginary line running through the center of the Earth/Moon system then Earth's rotation will cease slowing down.
這種情況將繼續(xù)下去，直到地球的潮汐隆起與一個貫穿中心地/月系統(tǒng)假想線重合，那時地球的自轉(zhuǎn)將停止放緩。
The Earth spins on an imaginary line called an axis that runs from the north pole to the south pole, while also orbiting the sun.
地球繞一個貫穿南極點和北極點的假想軸旋轉(zhuǎn)，這個假想軸稱為地軸。同時也繞太陽公轉(zhuǎn)。

One line is the equator. It is an imaginary line around the widest part of the Earth.

Although, this path is only apparent since the Earth is also moving and the Time spent by the stone to reach the ground has also changed to some degree that imaginary vertical line.
FORBES: Colliding Galaxies Provide A Glimpse Into Our Future
If you take an iPad and hold it upright in portrait view and draw an imaginary horizontal line halfway down the screen, the screens on the seven-inch tablets are a bit smaller than the bottom half of the iPad display.
FORBES: Steve Jobs' Own Words From His Last Earnings Call