片语

fictitious yield per unit area虚拟单位产量

yield per unit area亩产

yield per unit gear单位渔具产量

fictitious yield per unit虚拟单位产量

yield d per unit单产

yield of per unit area单位土地上的年

the yield per unit area单位面积产量

yield per unit of gear单位渔具产量

yield per unit recruitment单位补充渔获量

英汉例句

• In 1959, various factors such as reduction of sown areas, less yield per unit area and natural disasters contributed to the decrease in grain output.

  1959年开始，由于播种面积减少、单产下降、自然灾害等原因，粮食产量连年下滑。

• We will effectively keep the area planted with grain crops stable, focus on increasing the yield per unit area and optimizing the variety mix, and increase the country's grain production capacity.

  我们要切实稳定种植面积，着力提高单产，优化品种结构，推进全国新增粮食生产能力建设。

• Faced to tillage land resource reducing and large proportion of hilly fields, increasing yield per unit area must be done to meet the need of increasing population at present and in the future.

  辽宁省耕地资源少、坡耕地比重大，满足现在和将来日益增长的人口需要，必须在保护好现有耕地面积基础上，提高单产。

• The first assignment of development wheat production is raising yield per unit area and improving quality, and the varieties improvement can not do well without innovation of new wheat germplasm.

  发展小麦生产的首要任务是在现有品种的基础上提高单产和改良品质，而品种改良离不开种质资源的创新。

• Grain yield per unit area increased continually during the past near 50 years in HuangHuai -hai plain, and its increasing speed in recent years still kept higher than the average of all the country.

  建国以来黄淮海平原粮食单产持续增长，近年来仍然高于全国同期单产增速。

• There is potential for increasing the yield per unit area on the existing cultivated land.

  提高现在耕地单位面积产量有可能。

• An important method of increasing rice yield per unit area is to improve the rice-planting mechanization lever and use advanced planting technology.

  提高水稻单产的一项重要措施是提高水稻种植机械化水平，即采用先进的种植技术。

• The paper puts forward the quantization formula by regarding fictitious yield per unit area as one way of contrasting and evaluating the economic results of aquaculture.

  本文提出以虚拟单位产量作为比较与评价水产养殖经济效果的一种方法，给出了量化公式。

• Piles foresees accurately increases 30% the alfalfa or the corn straw, but effectively enhances the yield per unit of area.

  堆料中添加30%的苜蓿草或玉米秸桿，可有效地提高单位面积产量。

• As a result, the yield per unit is improved by more than 20 percent, and the growth regulator improves quality, full fruit rate, seed weight, protein and fat content remarkably.

  结果单产提高20%以上，并明显改善其品质，饱果率、百仁重、蛋白质与脂肪含量均明显提高。

• Since 1987, late rice is planted in extensive area. The meteorological factors influencing the variation of grain yield per unit area from 1987 on differ obviously with those before 1987.

  1987年大面积种植单季晚稻以来，影响粮食单位面积产量变化的气象条件与1987年之前有着明显的差异。

• In this 50 years, grain crops output, the grain crops sown area and the yield per unit of area and the temperature are obviously related, but they are slightly correlative with the precipitation.

  近50年的粮食作物产量、粮食作物播种面积和单位面积产量与气温均呈明显的正相关，而与降水的相关性很差。

• We choose the average limiting maximum sustainable yield per unit time as management objective, the corresponding optimal population level is determined.

  选择单位时间的最大持久收益的极限均值作为管理目标，同时得到了最佳的种群水平。

• Because of the diminishing opportunity to expand cultivated land, researches have been mostly focused on the rise of yield per unit area.

  由于扩大耕地面积的可能性越来越小，研究已主要集中于提高单位面积产量。

• Ways of improving crop yield per unit area and the countermeasures.

  提高作物单产的途径与对策。

• There is potential for increasing the yield per unit area on the existing cultivated land.

  提高现有耕地单位面积产量有潜力。

• But food yield per unit is very not tall still, still have very large increase production latent capacity.

  但粮食单位面积产量还不很高，仍有很大的增产潜力。

• But many defects exist in the pear industry such as unreasonable varieties structure, low yield per unit area, the shortage of high quality fruits, poor benefit and so on.

  但是，从整个梨产业结构来说还存在不少问题，如品种结构不合理，单位面积产量低，优质果少，经济效益差等。

• The food yield per unit water is an important index, which indicate the efficiency of the irrigation water use and status of food production.

  单位水量粮食生产能力是综合反映灌溉用水水平和粮食生产状况的重要指标。