种子和花粉是随风传播的。
许多人对空气中花粉之类的污染物质过敏。
Many people are allergic to airborne pollutants such as pollen.
这种杀虫剂存在于整个植物中，包括它的花粉。
The insecticide occurs throughout the plant, including its pollen.
玉米花粉被风吹散，经常吹到生长在玉米田附近的乳草属植物上。
Maize pollen is dispersed by the wind and often blows onto milkweed plants that grow near maize fields.
这个问题的出现是因为植物需要通过风和昆虫来传递花粉以受精和繁殖。
The problem occurs because plants need to transfer pollen by wind and insect to fertilization and reproduction.
在实验中，这些毛毛虫被喂食沾有转基因玉米花粉的马利筋叶子，然后它们死亡了。
When, in experiments, these caterpillars were fed milkweed leaves dusted with pollen from modified maize plants, they died.
菠萝蜜中的过敏原不会使免疫系统敏感，但是一旦桦树花粉刺激了免疫系统，免疫系统也会对菠萝蜜有反应。
The allergen in jackfruit does not sensitize the immune system, but once birch pollen has done so, the immune system may react to jackfruit too.
以粗纱布或细筛过筛，便可将花粉同柔荑花序的其它部分分开。
The pollen can then be separated from the rest of the catkin by sieving through cheesecloth or fine screen.
另一种有问题的方法是根据花粉谱重建以前的气候。
Another problematic method is to reconstruct former climates on the basis of pollen profiles.
还有一些石化的花粉，来自于曾经生长在撒哈拉的小灌木丛和草丛。
Then there is fossilized pollen, from low shrubs and grasses that once grew in the Sahara.
她患了讨厌的花粉热。
花粉热是一种早年易患的病。
更换空调通风口的过滤器。这些过滤器是灰尘和花粉的“吸铁石”。
Change the filters on your air-conditioning vents. These filters are dust and pollen "magnets".
一只摇蚊把它的头伸进一个“花瓣囊”里，收集可可花的花粉，“花瓣囊”里既有花粉，也有粘稠的花蜜。
A midge gathers pollen from a cacao flower by sticking its head inside a "petal pouch" that contains both pollen and a sticky nectar reward.
苏铁雄球果的结构与花粉的风传播相当一致，花粉云从一些较大的球果中释放出来。
The structure of cycads male cones is quite consistent with the wind dispersal of pollen, clouds of which are released from some of the larger cones.
哮喘是一种支气管疾病，比花粉热（一种鼻道的过敏性炎症）要少见得多。
Asthma, a bronchial condition, is much less common ailment than hay fever, an allergic inflammation of the nasal passages.
一个特定地区的植被类型是通过识别和计算那里发现的各种花粉粒来确定的。
The type of vegetation in a specific region is determined by identifying and counting the various pollen grains found there.
例如，苏铁的雄性圆锥体会脱落近100立方厘米的花粉，其中大部分可能是被风吹散的。
The male cone of Cycas circinalis, for example, sheds almost 100 cubic centimeters of pollen, most of which is probably dispersed by wind.
花朵鲜艳的颜色吸引昆虫的注意，然后昆虫就把它们的花粉从一朵花带到另一朵花。
The bright colors of flowers catch the attention of insects, which then carry their pollen from one flower to another.
采用离体花粉萌发法测定了芒豆的花粉活力。
The pollen viability of Miscanthus sinensis was determined by in vitro pollen germination method.
对我来说，最大的考验是花粉热季节。
雪边分红是由一种只能通过显微镜才能看到的藻类和白皮巴尔干松的叶子、花粉引起的。
The snow turns pink because of microscopic algae known as Chamydomonas nivalis, leaves and pollen of the whitebark pine.
这项研究的结果将为进一步开发天花粉作为生物除草剂和杀虫剂提供理论依据。
The results of this study will provide a theoretical basis for further developing trichothecenes as biological herbicides and insecticides.
发生这样的问题是因为植物需要通过风和昆虫传递花粉进行受精繁殖。
The problem occurs because plants need to transfer pollen by wind and insect to fertilization and reproduce.
蜜蜂以花朵的琼浆和花粉为生。
鼻洁灵洁鼻喷雾也可以帮助赶走花粉的困扰。
Saline nasal douches such as Sterimar also help flush pollen away.
甲虫是最古老的花粉输送者。
平常的嫌疑人：花粉大小各异。
一只沙漠蛛蜂正在吞食马利筋的花粉。
一只沙漠蛛蜂正在吞食马利筋的花粉。
应用推荐