weak at在 ... 方面弱的weakadj.弱的；虚弱的；无力的；差的；淡薄的weak basicity弱碱性weak sections薄弱截面weak coupling弱耦合,疏耦合weak inversion亚阈值weak selection弱选择函数weak acid salt弱酸盐Weak Inclusion弱包含weak B antigen弱B抗原weak condition弱条件Weak Lp spaces弱Lp空间