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energy conversion
相关语句
  能量转换
    INCREASING ECOLOGICAL ENERGY CONVERSION EFFICIENCY IN FRESHWATER CULTURE PONDS WITH PHOTOSYNTHETIC BACTERIA
    利用光合细菌提高淡水养殖池塘生态能量转换效率
短句来源
    Analysis of energy conversion effciency in tnibanked fish pond ecosystem along coastal area.
    沿海框围养鱼生态系统能量转换效率的分析
短句来源
    Primary productivity and energy conversion efficiency in eel pond
    养鳗池塘的初级生产力和能量转换效率
短句来源
    The effect of density on energy conversion efficiency of juvenile shrimp Litopenaeus vannamei
    养殖密度对凡纳滨对虾能量转换效率的影响研究
短句来源
    The energy conversion efficiency (ECE)of pond ecosystem cultivated mainly with black carp(Mylpharyngdon piceus) at Suzhou suburb during 1985—1987 is analyzed.
    1985—1987年对苏州市郊区主养青鱼池塘生态系统的能量转换率进行了分析。
短句来源
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  能量转化
    On the basis of the aquatic ecosystem and Lindeman's "efficiency of energy conversion ", following formula is suggested to estimate the complex potential production of fish in the reservior. Fc=0.1 Λ_1-0.9f_2+10Λ_4 Thus, the complex potential fish production of the reservior is 253.08 kg·ha~(-1)~(-1).
    据推算,腐屑链的细菌年生产量为19676 kJ/m~2.根据本库生态系和Lind-eman的能量转化律,拟定综合鱼产力的估算公式为:Fc=0.1A1-0.9f_2+10A4,计算值为253.08kg/ha.
短句来源
    PRIMARY PRODUCTIVITY AND ENERGY CONVERSION EFFICIENCIES FOR SILVER CARP AND BIGHEAD CARP IN HIGH-OUTPUT FISH PONDS WITH THE BLACK CARP AS THE MAJOR SPECIES FOR CULTURE
    主养青鱼高产池塘的初级生产力及其能量转化为鲢、鳙产量的效率
短句来源
    PRIMARY PRODUCTIVITY AND ECOLOGICAL EFFICIENCIES OF ENERGY CONVERSION IN HIGH OUTPUT FISHPONDS WITH SILVER CARP,BIGHEAD AND TILAPIA AS THE MAJOR CULTURE SPECIES
    主养鲢鳙非鲫高产鱼塘的初级生产力与能量转化效率的研究
短句来源
    The energy conversion efficiency of tilapia cage culture is significantly(P<0.01)higher than that of common carp adult cage culture and common carp fingerling cage culture. The later two are both significantly higher (P<0.01) than that of silver and bighead carp fingerling cage culture.
    网箱养非鲫的能量转化效率极显著地(P<0.01)大于网箱养鲤成鱼、鲤鱼种,后两者又极显著地(P<0.01)大于网箱培育鲢、鳙鱼种。
短句来源
    Based on the data of ecological surveys in 1984 and 1985,the abiotic environment,community of species, primary productivity and energy conversion efficiency in the ecosystem of fish-raising ponds were described.
    根据1984~1985年对海城西四渔场养鱼他的生态学调查材料,论述了鱼池生态系统的非生物环境、生物群落、初级生产力以及能量转化效率。
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  “energy conversion”译为未确定词的双语例句
    The efficiency of energy conversion of Λ_2/Λ_1 is 8.71%, of Λ_3/Λ_2 is only 0.79% and of Λ_4/Λ_3 is as high as 37.04%, Bacteria production of saprophytic food chain is 19676 kJ·m~(-2)·a~(-1) by estimated.
    能量转化率,A2/A1为8.71%,A3/A2仅0.79%,而A4/A3达37.04%。
短句来源
    Experiments on the consumption,growth and ecological conversion efficiency of dotted gizzard shad(Clupanodon punctatus)were conducted in a shrimp rearing pond in the coast of Laizhou Bay,the Bohai Sea,in September 1998.The ElliottPersson model was used to determine its feeding periodicity,to quantify its evacuation rate,consumption rate and food/energy conversion efficiency.
    1998年9月在山东省莱州市过西镇,对养虾池中斑鰶(Clupanodon punctatus)(叉长49.0~130.0mm,体重1.38~27.39g)的摄食与生态转换效率进行了研究。 采用ElliottPersson(1978)方法,从研究斑鰶的摄食周率出发,对其排空率、摄食率以及食物转换效率进行了定量。
短句来源
    The results showed that: (1) There were significant differences among ecological conversion efficiencies of 8 fish species. The change range of food or energy conversion efficiencies of the fishes were 12.9%-39.0% or 14.8%-46.1% respectively.
    结果表明 :(1) 8种鱼类的生态转换效率有显著差异 ,以湿重或比能值为单位表示的生态转换效率变化范围分别为 12 .9%~ 39.0 %和 14.8%~ 46 .1% ;
短句来源
    Compared with monoculture,the total energy conversion efficiency increased 113.4%,94.2%,116.02% and 41.91% respectively; the total energy consumption per unit of net yield was on average reduced by 62.22% in the polyculture systems. There was no significant difference in the feeding energy conversion efficiency between monoculture and polyculture systems(p>0.05).
    各混养处理与对虾单养相比,系统总能转化率分别提高了113.4%,94.2%,116.02%和41.91%,单位净产量耗总能则平均比对虾单养降低62.22%,但各处理饲料能转化率差异不明显(p>0.05)。
短句来源
    The results showed that the energy conversion efficiencies and the percentage of biologidal energy were higher in those ponds with higher water exchange, while the percentage of photosynthetic energy dropped.
    还表明换水量大的池塘其生物能占的比例较大,而光合能占的比例则较小。
短句来源
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  energy conversion
The efficiency of solar energy conversion and potential activity of the PSII in the leaves differ significantly, with the dentate broad-ovate leaves the highest.
      
The modern needs of structural integrity technology are largely attributed to the increase of service temperature of the structures that results in the efficiency improvement in energy conversion and chemical processing technologies.
      
Energy policy and its promotion of MSW-to-energy conversion are also elucidated.
      
Proton transfer dynamics at membrane/water interface and mechanism of biological energy conversion
      
Ways of energy conversion in electrochemical cells
      
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The potential fish productivity of Dong Hu according to the method of energybudget, the food supplying capacity of phytoplankton for the silver and bighead carpsand their conversion rate, and the potential productivity of the two species and therational stocking rate of their fingerlings are estimated. The annual net production of phytoplankton of Dong Hu is 80% of its grossproduction, offering a food-supplying capacity of 10, 025 tons of oxygon, or 35, 188×10~6 Kcal., equal to 61,153 tons (fresh weight) of...

The potential fish productivity of Dong Hu according to the method of energybudget, the food supplying capacity of phytoplankton for the silver and bighead carpsand their conversion rate, and the potential productivity of the two species and therational stocking rate of their fingerlings are estimated. The annual net production of phytoplankton of Dong Hu is 80% of its grossproduction, offering a food-supplying capacity of 10, 025 tons of oxygon, or 35, 188×10~6 Kcal., equal to 61,153 tons (fresh weight) of phytoplankton. The food coefficient of phytoplankton (fresh weight) for the silver and bigheadcarps is 82 and 47 respectively, and the energy conversion coefficient is 39.18 and22.69 respectively. The potential annual production of the silvar and bighead carps of Dong Hu mayreach to 1, 368, 000 kg i. e. 789 kg/ha, or more. The number of silver and bighead carps fingerlings not less than 13.3 cm inlength to be stocked each year should be 2, 090,000 and 1, 100, 000 respectively.

本文根据浮游植物生产量求得对鲢、鳙的供饵能力,并通过浮游植物对鲢、鳙转化效率的计算,估算出武昌东湖鲢、鳙的生产潜力,进而求得武昌东湖鲢、鳙的合理投放量。作者求得东湖浮游植物全年对鲢、鳙的供饵能力是61,153吨(鲜重);由此估算出东湖鲢、鳙的生产潜力是789公斤/公顷以上,每年鱼种(四寸以上)的合理投放量,鲢是 209万尾,鳙是 110万尾。

Investigationon Suyahu reservior——a large, lake-like reservior, was carried out from Oct. 1985 to Aug. 1988, showing some environmental factors and aquatic resources of the reservior as follow. The total nitrogen and phosphorus concentrations are 1.007 mg·l~(-1) and 0.282 mg·l~(-1), respectively, Secchi disc transparency is low, with an average of 11 cm. Efficiency of phytopiankton incorporating radiant energy is about 0.02%, Average production of first to fourth trophic level of grazing food chains (namely,...

Investigationon Suyahu reservior——a large, lake-like reservior, was carried out from Oct. 1985 to Aug. 1988, showing some environmental factors and aquatic resources of the reservior as follow. The total nitrogen and phosphorus concentrations are 1.007 mg·l~(-1) and 0.282 mg·l~(-1), respectively, Secchi disc transparency is low, with an average of 11 cm. Efficiency of phytopiankton incorporating radiant energy is about 0.02%, Average production of first to fourth trophic level of grazing food chains (namely, Λ_1, Λ_2, Λ_3 and Λ_4) are 4315.95, 375.82, 2.97 and 1.10kJ·m~(-2)·a~(-1), respectively. The efficiency of energy conversion of Λ_2/Λ_1 is 8.71%, of Λ_3/Λ_2 is only 0.79% and of Λ_4/Λ_3 is as high as 37.04%, Bacteria production of saprophytic food chain is 19676 kJ·m~(-2)·a~(-1) by estimated. On the basis of the aquatic ecosystem and Lindeman's "efficiency of energy conversion ", following formula is suggested to estimate the complex potential production of fish in the reservior. Fc=0.1 Λ_1-0.9f_2+10Λ_4 Thus, the complex potential fish production of the reservior is 253.08 kg·ha~(-1)~(-1). The reservior is medi-eutrophic. Suggestions are given to rational exploitation of the waters of the reservior.

1985年10月至1988年8月对大型平原湖泊型水库——宿鸭湖水库内的环境和生物资源和生物资源的调查表明,总氮、总磷含量分别为1.007 0.282mg/l.水透明度低,平均11cm。浮游植物对光能利用率约0.02%。牧食链中A1、A2、A3、A4的生产量分别这4315.95、375、2.97、1.10kJ/m~2.a.能量转化率,A2/A1为8.71%,A3/A2仅0.79%,而A4/A3达37.04%。据推算,腐屑链的细菌年生产量为19676 kJ/m~2.根据本库生态系和Lind-eman的能量转化律,拟定综合鱼产力的估算公式为:Fc=0.1A1-0.9f_2+10A4,计算值为253.08kg/ha.a.营养类型为中—富营养型。并对水域的合理利用提出了建议。

The energy conversion efficiency (ECE)of pond ecosystem cultivated mainly with black carp(Mylpharyngdon piceus) at Suzhou suburb during 1985—1987 is analyzed. The results show that productions of black carp, common carp and bream carp are respectively accounted for 82.49, 78.03 and 79.34% of total energy output in the ponds with net production levels of 7.5, 11.25 and 25.15t/ha. The ECE of total energy input (including solar and supplementaty energies)converted into total energy output...

The energy conversion efficiency (ECE)of pond ecosystem cultivated mainly with black carp(Mylpharyngdon piceus) at Suzhou suburb during 1985—1987 is analyzed. The results show that productions of black carp, common carp and bream carp are respectively accounted for 82.49, 78.03 and 79.34% of total energy output in the ponds with net production levels of 7.5, 11.25 and 25.15t/ha. The ECE of total energy input (including solar and supplementaty energies)converted into total energy output of fish is 0.19, 0.24 and 0.31%, and that of solar radiation energy converted into gross or net primary productivity is 0.76, 0.90 and 0.96% or 0.61, 0.72 and 0.77% respectively. The ECE of net primary productivity converted into net production of filtering fishes is 4.02, 4.63 and 5.27%, and that of supplementary energy converted into net production of fishes is 12.20, 11.33 and 11.74% respectively.Among the three ponds with different net production levels, that with net production of 15t/ha is an optimal one.

1985—1987年对苏州市郊区主养青鱼池塘生态系统的能量转换率进行了分析。结果表明,主养青鱼净产7.5、11.25、15t/ha 3个产量级型池塘青鲤团头鲂产出能占养鱼总产出能的比例分别为82.49、78.03、79.34%;总投入能(太阳辐射能+辅助能)转移到鱼的总产出能转换率分别为0.19、0.24、0.31%;太阳辐射能转移到毛和净初级生产力的能量转换率分别为0.76、0.90、0.96%和0.61、0.72、0.77%;净初级生产力转移到滤食性鱼净产量的能量转换率分别为4.02、4.63、5.27%;辅助能转移到鱼净产量的能量转换率分别为12.20、11.33。11.74%。在3个产量级型池塘中,以15t/ha产量级的能量转换率为最佳型。

 
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