花粉
- pollen;polverine
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(1) [pollen]∶指种子植物中常表现为细粉末的一团小孢子,由细颗粒状小孢子组成,典型的小孢子由一个花粉母细胞经减数分裂形成四个小孢子,每粒花粉为单个细胞构成,外壁具雕纹,萌发时产生出一根花粉管,雄配子通过花粉管进入胚珠内同卵结合受精
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(2) [polverine]∶地中海东部国家和岛屿所产的用于制优质玻璃的钾碱或粗碳酸钙
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种子和花粉是随风传播的。
Seeds and pollen are spread by the wind .
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可以买一种含蜂王浆、花粉和维生素C的配方产品。
You can buy a formulation containing royal jelly , pollen and vitamin C.
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许多人对空气传播的污染物过敏,比如花粉。
Many people are allergic to airborne pollutants such as pollen .
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花粉计数高时,尽量避免去乡村旅行。
Avoid trips to the country while the pollen count is high .
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她患上了花粉热这种讨厌的病症。
She 's a victim of the dreaded hay fever
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日子一天天过去,花粉干结成了硬块。
As the day goes on , the pollen dries up and becomes hard
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花粉热临床表现为流泪、流涕,眼睛、鼻子发痒。
When someone has hayfever , the eyes and nose will stream and itch
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马上去看病,把花粉过敏引起的打喷嚏治好。
See your doctor now to beat summer sneezing .
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花粉病初期常被误认为是风热感冒。
When hay fever first occurs it is often mistaken for a summer cold .
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男性的花粉热感染率比女性高。
Hay fever affects males more than females .
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花的作用在于吸引昆虫,然后昆虫再将花粉传到其他植株上。
Flowers are designed to attract insects which then carry the pollen from plant to plant
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他对花粉(青霉素)过敏。
He is allergic to pollen ( penicillin ) .
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蜂鸟发现花蜜和花粉是很有营养的。
Hummingbirds have discovered that nectar and pollen are very nutritious .
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它的喙上粘了很多花粉。
Its proboscis has got stuck to a lot of pollen .
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为什么这些过敏症状在花粉季节这么顽固?
why did these allergy symptoms persist well past the pollen season ?
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蜜蜂将花粉运送到蜂窝之中,与蜂蜜混合在一起。
This pollen is taken to the hive and mixed with honey .
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他对花粉过敏。
He developed an allergy to pollen .
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至于不同地区的台湾山茶之间、或是茶与阿萨姆茶之间,皆无法以花粉形态来区分
In contrast , C. sinensis var. sinensis and assamica couldn 't be distinguished by the morphology of pollens .
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花瓣之中则长有15或20个小的粉穗或雄蕊,顶部为黄色,包含很多细小的黄色花粉颗粒。
Inside these petals are fifteen or twenty little dust-spikes or stamens , with yellow heads which are full of tiny yellow grains of pollen4 .
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工蜂将那些从花朵中采集的花粉(粉末状的黄色微粒)储存在这两个“篮子”里面。
In these two baskets the working bee stores up the pollen6 , or yellow grains like dust , which it gets from the flowers .
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虽然蜜蜂传播花粉的作用被人们普遍认可,但我们却忽视了飞蛾在黑夜中也做着相同的工作。
While bees are widely recognised for their role as pollinators , we have overlooked the same job being done by moths3 during the hours of darkness .
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以北京为例,春季最常见的致敏花粉包括榆树、杨树、白蜡、合欢树和白桦的花粉。
In Beijing , for example , the most common allergenic pollens in spring include those from the large-fruited elm tree , Cathay poplar , ash , acacia and white birch .
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但日本的研究人员们发现,这些易碎的球体每个都能携带多达2000个花粉颗粒,它们温柔的轻吻足以使一棵开花的梨树受粉。
But Japanese researchers have found that these delicate spheres can each carry up to 2000 grains of pollen2 , and their gentle kiss is strong enough to fertilise a flowering pear tree .
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过敏由外部环境比如空气污染、花粉浓度等,以及内部环境如遗传和自身免疫系统因素引起。
Allergic rhinitis is caused by both the external environment — which includes air pollution and pollen — and internal factors , in which heredity and an individual ’ s immune system come into play .
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这篇发表在《生物学快报》期刊上的研究发现,花粉通常粘在蛾子毛茸茸的身体上,等到夜间活动时,随即被运送到各种各样的植物和花朵上。
The study published in the journal Biology Letters found that pollen4 often sticks to the moth 's hairy body and is then transported to a wide range of plants and flowers during their nighttime travels .
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玉米花粉粒直接PCR技术研究
The Studies on Direct PCR using Maize Pollen Grain Suspensions
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油菜花粉中槲皮素和山柰素总含量的HPLC法测定
Determination of flavone glycosides in pollen of Brassica campestris by HPLC
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神农架北坡表土常见花粉的R值研究
A Study on the Representation of Common Pollens in Soils on the Northern Slope of Shennongjia Mountains
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RNA编辑是在转录后水平上影响花粉发育。
RNA editing interfered the development of pollen at the post - transcript level .
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在植物中,TAG主要在种子、花粉和许多物种的果实中积累。
In plants , TAG mainly accumulates in seeds , pollens and fruits of many species .