effective ion有效离子effectiveadj.有效的；生效的；实际的Effective Management for Middle-Level Manager高绩效的中层管理培训Effective Bandwidths Under Multiplexing Traffic多路复用下业务流的有效带宽Effective Orthogonal Constant Modulus Algorithm一种有效的正交化恒模算法effectiveness evaluation on communication system通信系统效能评估effective lengths of receiving-departure track到发线有效长Effective field of magnetocrystalline anisotropy磁晶各向异性等效场Effective Interaction between Colloidal Particles胶体粒子之间的等效相互作用effective refractory period of the left ventricle左心室的有效不应期EFFECTIVENESS FACTOR FORIRREGULAR CATALYST PELLET形状不规则催化剂的效率因子计算Effective treatment of second-generation antihistamines.第二代抗组胺药治疗有效。

1. When calculating oil and gas reserves by volumetric method, one factor affecting the computing accuracy is reservoir effective thickness.
   用容积法计算油气储量时，影响储量计算精度的因素之一是储层有效厚度。