单词	gravity--force
释义	force; gravity重力
随便看	variable parameter model variable partition variable path difference variable pay variable-pay program variable-persistence storage monitor variable phase variable phase shifter variable pitch variable pitch cylindrical helical spring variable pitch propeller variable pitch--propeller variable-pitch propeller variable pitch propeller--adjustable pitch propeller-- controllable pitch propeller variable pitch screw variable pitch 可变螺距 variable point variable-point variable-pointer list variable-point representation variable-point representation system variable position valve variable potential source variable power eye piece variable power eyepiece