effective opening meaning in English
有效孔径
有效孔隙
Examples
- The main performances of band drain include flow capacity , tensile strength , longitudinal and transverse tensile strength of filter fabric , longitudinal and transverse tear strength , water permeability and effective opening size etc
反映排水板性能的主要指标包括：通水量，抗拉强度，滤膜纵横向抗拉强度，纵横向抗撕裂强度，渗透性和有效孔径等。 - China ' s ongoing market - oriented reform and opening policy is developing against specific national background : planned - economy system . to be successful , it is essential to make positive , reasonable and effective opening degree choice for the realization of high return and low cost during the opening
中国正在进行的市场经济改革和对外开放是在计划经济体制这个特定的前提下展开的，要在这一特定的初始条件下获得成功，积极、合理、有效的开放度选择是实现开放中的低代价高收益的必要条件。