1、The Earth exerts a force of attraction on all objects.
地球?qū)?a href="/zaoju/98106.htm">所有物體都施加吸引力。

2、Experiments show that the molecular force of attraction and repulsion of the vector.
實驗表明，分子力為吸引力和排斥力的矢量和。

3、And we saw last day that we have a Coulombic force of attraction which you have seen before.
我們昨天學(xué)習到，我們有庫侖引力，之前你們學(xué)過的。

4、Electrons are kept in their paths by the force of attraction between the protons and the electrons.
質(zhì)子與電子間的吸引力使電子保持在他們的軌道上。

force of attraction翻譯