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- The grain-sown area will be stabilized at about 110 million ha through the increase of the multiple crop index. 通过提高复种指数，使粮食作物播种面积稳定在1.;1亿公顷左右。
- Losing irrigation water may mean either abandoning land or less double cropping. 灌溉用水短缺的直接影响不是废弃农田，就是减少一年两作。
- Double cropping; sequential cropping Planting one crop after harvesting another. 两熟耕作法;连续耕作法在收获一种作物之后再种植另一种作物的耕作方法。
- Because the multiple cropping index calculated on the base of statistic data is not ensured, there will be some deviation in policy-making. 耕地复种指数是衡量耕地资源集约化程度的基础性指标,也是国家宏观评价耕地资源利用状况的重要技术指标。
- Double cropping; sequential cropping: Planting one crop after harvesting another. 两熟耕作法;连续耕作法:在收获一种作物之后再种植另一种作物的耕作方法。
- Under the precondition of high grain production, cropping index and light energy utilization should be put up continuously so as to make agriculture more profitable. 在粮食高产前提下，要不断提高复种指数和光能利用律，使农业更为盈利。
- The cluster analysis can effectively distinguish between single cropping Zizania caduciflora and double cropping Zizania caduciflora. 该分类方法可以很好地将单季茭和双季茭区分开。
- Flue-cured tobacco, the three garlic, sericulture, animal husbandry, walnut has become the five pillar industries, crop sown area of 5.3 million, up 167% multiple crop index. 烤烟、三蒜、蚕桑、畜牧、核桃已成为五大支柱产业，农作物播种面积达5.;3万亩;复种指数达167%25。
- The experiments were conducted in double cropping rice field during 2005-2006 to study the effects of different tillage methods on rice yield and its source-sink characteristics. 摘要于2005-2006年在双季稻田以翻耕处理为对照，研究了免耕抛栽对水稻产量及其源库特性的影响。
- A new double cropping Zizania caduciflora strain No. 8970 was seleted，which was of excellent agronomic characters，superior quality，and has been utilized in commercial production. 在双季茭中，筛选出农艺性状优异、品质性状较好的已在生产上应用的新品系8970。
- On the contrary, the double cropping rice followed by a cool-loving crop per year and the double cropping rice followed by a thermophilous crop per year are potential carbon sources. 而双季稻连作喜温作物和单(双)季稻连作喜凉作物生态系统起着较稳定的碳源作用.
- A Study on Cropping Index Potential Based on GIS 基于GIS的复种指数潜力研究
- raise the multiple cropping index 提高复种指数
- rice-wheat double cropping fields 稻茬麦田
- Wheat-maize interplanting of both crops' high yield features shorter cycling period, higher multiple cropping index, stronger fertility exhaustion and no time for soil fertility to recover. 小麦-玉米套种两作产量皆高是以周期短、复种指数高、肥力耗竭强为特征，土壤肥力没有时间得以复原。
- South-China double cropping super rice 华南双季超级稻
- He is working double tides to finish his essay. 他日夜苦干，赶写他的文章。
- I do not realize it is a double feature. 我原先不知道这是双片连映。
- Double agents live in a perpetual state of fear. 两面派永远过着提心吊胆的生活。
- I want a double room with a view. 我要一间能看到风景的双人房间。
