弱键 meaning in English

weak bonds
weak linkage

Van der waals ( vdw ) complexes are weak bonding complexes formed by atoms or molecules through interaction of electric multipole moments and dispersion forces . these complexes are characterized by their comparatively low binding energy ( 100 - 1000cm - 1 )
范德瓦尔斯( vdw )复合物是原子或分子间通过多极矩和色散相互作用形成的弱键能复合物，它们的键能比较弱，一般为100 1000cm ~ ( - 1 ) 。