effective lap有效搭接effectiveadj.有效的；生效的；实际的effectiveness requirement有效性要求effective signal duration有效信号持续期间effective angle of attack有效迎角effectiveness improvement效用深化Effectiveness observation效果观察Effective core potentials有效核近似effective day temperature有效昼温effective bargaining zone有效议价区间effective friction factor有效摩擦系数effective moral education有效德育