secondary production meaning in English
次级生产；第二级生产
次级生产力
次级生产量
次生产物
第二级生产；次级生产
第二级生产；第二产业
二次开采
二次生产
二期生产
加工工业
Examples
- Secondary production ( comprising manufacturing , construction , and supply of electricity , gas and water ) , which once was a significant contributor to gdp , has dwindled in relative importance over the past two decades
第二级生产行业（包括制造业、建造业和水电煤气供应）曾一度占本地生产总值一大比重，但其重要性在过去20年已有所下降。 - Secondary production ( comprising manufacturing , construction , and supply of electricity , gas and water ) , which constituted a significant contributor to gdp up to the early 1980s , has diminished in relative importance since then
第二级生产行业(包括制造业、建造业和水电煤气供应)在本地生产总值中曾一度占重大比重。这情况一直维持至上世纪八十年代初，但之后重要性日渐退减。 - The estimated total annual secondary production of macrobenthos was 28 , 000tc in jiaozhou bay . compared with the data published on macrobenthic ecology in this area , there was a significant increase in the present abundance and a remarkable decrease in the biomass
与渤海和南黄海大型底栖动物的丰度和生物量比较，湾内的丰度和生物量均低于这两个海域，但是胶州湾大型底栖动物的年均生产量水平高于渤海。 - Compared with the studies on macrofauna in bohai sea and southern yellow sea , the macrobenthic abundance and biomass in jiaozhou bay were less than those of two seas . but the macrobenthic secondary production in jiaozhou bay was more than that of the bohai sea . using the sieves with 0 . 5mm aperture mesh in sorting quantitative macrobenthic samples shows more advantages than that of using sieves with 1mm aperture mesh
本研究同时使用了1mm和0 . 5mm孔径的网筛进行大型底栖动物的分选，通过两种孔径网筛筛留大型底栖动物的种数、丰度和生物量比较，说明0 . 5mm孔径的网筛对大型底栖动物分选在种类和数量组成优于1mm孔径网筛，使群落结构更完整，样品代表性更高。