effective lap有效搭接effectiveadj.有效的；生效的；实际的effective influence depth有效影响深度effective cross-section有效截面effective crimping radius有效卷曲半径effective operand address有效操作数地址,操作数有效地址effective marketing chain有效营销链Effective wellbore radius当量井径effective area of antenna天线有效面积Effective Privilege Level有效特权水平Effective measuring point有效测量点Effective Elastic Modulus有效弹性模量