查询词典 nectar-bearing
- 与 nectar-bearing 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The honeybee's proventriculus filter the pollen out of nectar rapidly and effectively, therefore ratio of pollen is not always consistent with that of nectar in ripe honey.
因为蜜蜂的前胃能快速有效地过滤掉花蜜中的花粉,蜂蜜中花粉的比例并不总代表其中的花蜜比例。
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Secondary pollinators are diurnal hawk moths and butterflies. Bombus briviceps and Bombus sp. are nectar gatherers. The mean nectar sugar concentration is 29.5%. The proport ion of seed is 86. 5%. Percentage seed germination under controlled conditions is 23.1 %. Distances that seeds are ejected ranged from 0.58-1.17 m. The distances that pollen spread is 29cm. Pollen viability is highest on the day of anthesis and thereafter decreased.
匍匐凤仙花的主要传粉者是蜜蜂和熊蜂,次要传粉者为白天活动的天蛾和蝴蝶,另外还有两种花蜜窃取者;花蜜糖平均浓度为29.5%;种子产生率为86.5%,种子萌发率为23.1%,种子散布距离为0.58-1.17m;花粉流为29cm;花粉活力在第一天最高,第二天次之,第三天显著减弱;P/O值为
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The nectaries of Ensete glaucum had the highest starch content, and those of Musa basjoo and E. glaucum had fibrillar material presented in nectar ducts. Pollination syndromes among the three species showed high diversity, while inflorescence and flower characters (such as pendant or erect inflorescences, bract color, nectar volume and production over time, etc.) and pollination patterns were highly correlated.
PAS反应显示象腿蕉泌蜜组织中淀粉粒含量高于其他两个种;芭蕉和象腿蕉的蜜腺腔里有许多纤维状物质存在。3种植物的传粉综合征多样化,花序和花的特征(如花序下垂或直立、苞片的颜色、泌蜜量和泌蜜时间等)和传粉样式之间有密切关系。
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To be specific, between the peony and the rose plant squash and spinach, turnips and tomatoes; beauty is nectar and nectar, in a desert, saves - but the stomach craves stronger sustenance than the honied vine.
具体而言,在牡丹和玫瑰,南瓜和菠菜,萝卜和番茄之中;花蜜是美丽的,因为,在沙漠中,花蜜比甘甜的藤蔓更能满足胃的需要。
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They found that most of the columbines' nectar spur length evolution happened during shifts in pollinators from bumblebees to hummingbirds, and from hummingbirds to hawkmoths. In between these shifts, evolution of the columbines' nectar spurs came to a halt.
Whittall和Hodges发现,在许多植物中,这种协同进化更具有&一边倒&的倾向,蜜管会随着采蜜者喙的长度而进化,随后这一过程会中止,只有新的采蜜者出现才能让进化过程重新启动。
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Herbivory or addition of JA to the leaves did not have an effect on floral nectar secretion, demonstrating a functional separation of systemic defence signalling from reproductive nectar secretion.
且茉莉酸在不同的植物组织有不同的功能:在叶片,它激活植物对食草动物的防御机制;而在花朵,它控制花蜜的生产。
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Herbivory or addition of JA to the leaves did not have an effect on floral nectar secretion, demonstrating a functional separation of systemic defence signalling from reproductive nectar secretion.
当用这种抑制剂喷洒还未开放的花蕾时,花的开放也会得到抑制,这证实茉莉酸在花的成长过程中也起着重要作用。
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Species had three kinds of diets during the non-breeding season:(1) mainly invertebrates,(2) mainly fruits, and (3) mainly nectar. This study demonstrated that the diets of 14 passerines during the non-breeding season were significantly correlative with tongue morphology (r=0.424, P .05) and were most correlative with brush length and width of the 3/4 position (r=0.62, P.05). For example, Yuhina brunneiceps's primary diet is nectar and it has the brush-tipped tongue with the longest brush length. Niltava vivida mainly forages for fruits and has a tongue with longer width of the 3/4 position.
十七种鸟类在非生殖季时的食性,亦可分为三大类群:(1)主食无脊椎动物;(2)主食果实;(3)主食花蜜。14种鸟类的舌部形态与其非生殖季食性具有显著相关,其中,仅舌分叉长及3/4位置的舌宽与其食性较有关系,可解释非生殖季食性约36%的解释变异量,也就是分叉长较长的舌头属於刷状卷曲舌形,主食花蜜,以冠羽画眉为代表;3/4位置舌宽较大的舌形,主食果实,以黄腹琉璃为代表。
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By means of field test for the pile of 15 meters length and MARC finite element analysis, this paper studies the bearing mechanism of the reinforced mixing pile, analyzes the law of load transfer and the percentage about cement-soil ring and reinforced concrete core under vertical load, analyzes the change law and interactive behavior about the pile's surface bearing and end bearing. In the end an experiential equation that can be used in Tianjin area to estimate the bearing capacity of single pile is proposed on the basis of test researches and finite element analysis.
分析了劲性搅拌桩在竖向荷载作用下的荷载传递规律及芯桩与水泥土的荷载分担比;分析了劲性搅拌桩在竖向荷载作用下桩侧摩阻力和桩端阻力随桩顶荷载的变化规律;分析了劲性搅拌桩在竖向荷载作用下桩端阻力及桩侧阻力的发挥性状与桩土位移间的关系及端阻力与侧阻力的荷载分担比。
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On the base of finite element analysis and testing on the bearing capacity, set up reliability evaluate model based on the bearing capacity of the bridge-crane structure. The model fully considers the random of the factors that affect the bearing capacity, and evaluate the bearing capacity in certain evaluate norms.
在有限元分析和承载能力测试的基础上,建立了基于常规可靠性理论的桥架结构承载能力可靠性评估模型,充分考虑影响桥架承载能力因素的随机性,按可靠性模型进行桥架承载能力可靠性指标计算,然后按评判准则进行承载能力评估,达到了量化评估的目的。
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- 推荐网络例句
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Based on the relationship and the phenomenon model, an improved model of MR damper has been presented in this paper.
摘 要:本文在实验数据的基础上建立了磁流变阻尼器输出力与不同常电流控制量的关系,对现有的 p模型进行了改进。
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I don't think our founding fathers were very fuckable.
我认为我们的开国元老没什么吸引力
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In chapter 3, an optimum method of milling parameter based on orthogonal cutting finite element model is proposed.
第三章提出了基于正交切削加工有限元模型的铣削参数优化方法。