pollen

Seeds and pollen are spread by the wind .

种子和花粉是随风传播的。

Avoid trips to the country while the pollen count is high .

花粉计数高时，尽量避免去乡村旅行。

Many people are allergic to airborne pollutants such as pollen .

许多人对空气传播的污染物过敏，比如花粉。

As the day goes on , the pollen dries up and becomes hard

日子一天天过去，花粉干结成了硬块。

Flowers are designed to attract insects which then carry the pollen from plant to plant

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。

Certain varieties cannot be fertilised with their own pollen .

某些物种只能异花授粉。

You can buy a formulation containing royal jelly , pollen and vitamin C.

可以买一种含蜂王浆、花粉和维生素C的配方产品。

Pollen vectors among animals are apes , lemurs , indian bears .

动物中传粉媒介有猿、狐猿、印度熊。

He is allergic to pollen ( penicillin ) .

他对花粉（青霉素）过敏。

why did these allergy symptoms persist well past the pollen season ?

为什么这些过敏症状在花粉季节这么顽固？

Its proboscis has got stuck to a lot of pollen .

它的喙上粘了很多花粉。

This pollen is taken to the hive and mixed with honey .

蜜蜂将花粉运送到蜂窝之中，与蜂蜜混合在一起。

He developed an allergy to pollen .

他对花粉过敏。

Hummingbirds have discovered that nectar and pollen are very nutritious .

蜂鸟发现花蜜和花粉是很有营养的。

In contrast , C. sinensis var. sinensis and assamica couldn 't be distinguished by the morphology of pollens .

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

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 .

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。

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 .

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。

Study on surface pollen in middle inner mongolia , China

内蒙古中部表土花粉研究

This type of air state is called pollen pollution .

空气花粉污染引起的疾病称为花粉症，即花粉过敏性反应。

Studies on the Formation Date of Pollen Tube Way of Wheat

小麦花粉管通道形成时期的研究

They transfer pollen from one plant to another .

他们转让的花粉从一个工厂到另一个。

A New Technology of Edible Pollen and Its Serial Products

食用花粉素生产新工艺及其产品的研究

Current Situation and prospects of Researches on Air Pollution by Pollens

空气花粉污染研究的现状与趋势

Effects of the Different Factors on Vigor Power of the Watermelon Pollen

不同因素对西瓜花粉生活力的影响

Study of Pollen Protoplasts and Its Application Potentiality in Vegetable Research Field

花粉原生质体研究及其在蔬菜领域的应用潜力

The Research on the Management of Cold Storage ON COLD STORAGE OF MAIZE POLLEN

玉米花粉的冷藏研究

The ways of poplar pollen development and the effect of some factors in vitro

杨树花粉发育途径及某些因素的影响

Study on Breaking - wall Method of Rape Pollen

油菜花粉破壁方法研究

The results showed that pollen wall of the Genus is smooth .

结果表明：堇菜属植物花粉外壁光滑，无纹饰；

As a result , many specific genes in pollen development have been cloned .

目前已克隆了许多与花粉发育有关的基因，并鉴定了一些花粉发育的突变体。