...；产量差异；制约因子；杂交稻；非洲新水稻；机械化生产；全球 [gap=2162]Key words: rice production; yield gap; constraints; hybrid; new Africa rice; machine production; global ..
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... restrictive cause 限制性条款 ; 限制性条目 restrictive factors 制约因素 ; 限制性因素 ; 约束因素 ; 制约因子 Restrictive use 限定用法 ; 限制用法 ; 限定性用法 ...
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聚糖（proteoglycansofchondroitinsulphateAtype）、硫酸软骨素A制约因子（homologousrestrictionfactor,HRF），因此可避免穿孔素对CTL自身细胞的攻打。
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According to classifying these restriction factors, we can get that Nine Dragons Paper still has the space to adjusting and developing in the discharged intensity, raw material structure, circulation economy safeguard and system innovation ability.
根据对这些制约因子进行归类,发现玖龙纸业在污染排放强度、原料结构、循环经济保障、新鲜水消耗和系统创新能力等方面仍有可供调整和发展的空间。
参考来源 - 造纸企业树立正确的环保观念的重要性Determine the economic forest production factor of the main constraints is to solve the low mountain forests of the key production,but also for the selection of the optimal supplementary irrigation technology to provide a reference model.
确定经济林产量的主要制约因子,是解决山地经济林产量偏低的关键,也为选择最优补灌技术模式提供参考。
参考来源 - 晋东南石灰岩中山区仁用杏经济林集雨补灌技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
在调节种群增长方面，它与捕食一起是最重要的密度制约因子。
Together with predation, it is the most important density-dependent factor in regulating population growth.
补给率除受降雨量的影响外，土壤类型也是一个重要的制约因子。
In addition to the impact of precipitation on replenishment ratio, the soil type is also an important restrictive factor to replenishment.
雌蕊形态和胚囊的发育过程不是扁桃亲和性强度存在差异的制约因子。
The pistil shape and the development course of gastrula are not the restriction factor which cause the difference of compatibility intensity in almond.
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