单词	下水墩
释义	下水墩launching block
随便看	approximation function approximation-- impulse approximation in the mean approximation method approximation methods approximation of approximation of first degree approximation of function approximation of root approximation of second degree approximation on average approximation-- perturbation approximation-- point approximation problem approximation programming approximation-- rough approximations approximation-- sine-squared approximation suture approximation system approximation theorem approximation theory approximation to approximation to the true mode approximation to(或of)