ragweed

noun

1. 豚草（北美植物，绿色小花含大量花粉，可引起枯草热）
   a N American plant with small green flowers that contain a lot of pollen , which causes hay fever in some people

1. Study on Community Structure and Dynamics of Insects in a Ragweed Protecting Habitat
   保护地豚草昆虫群落结构及动态研究
2. Atopy was defined as a positive skin-prick test to mites, cat, Alternaria, Cladosporium, grass, birch, Parietaria, olive, or ragweed.
   特应性定义为对螨类、链格孢属、分子孢子菌属、草、桦木、墙草属、橄榄或豚草属皮肤划痕实验阳性。
3. Quick dissolving tablets Temporarily relieves the runny eyes and nose symptoms of allergy from pollen, ragweed, grasses, mold and animal dander.
   速溶片暂时缓解了不停地流泪，豚草的花粉和鼻子过敏症状，草，霉菌，动物皮屑。
4. Subjects received six doses of TOLAMBA over six weeks prior to the start of the2006 ragweed season.
   受试者在2006年豕草季节开始之前超过6周时接受6个剂量的TOLAMBA治疗。
5. To suppress the spread of the ragweed, there have been a lot of studies on their chemical control, physical control, plant displacement and biological control.
   为抑制其种群蔓延，前人开展了化学防治、物理防治、植物替代和生物防治等对豚草的防控研究。
6. Pollen of the ragweed plant is a common allergen.
   豚草属植物的花粉是常见的过敏原。
7. The following means of making a living are, according to New York City statues, illegal: the skinning of horses or cows, the growing of ragweed, and the burning of bones.
   根据纽约自由雕像的宣言，下列谋生方式是不合法的：剥牛皮或马皮，种植豚草以及焚烧尸体。
8. It meant crossing a broad field of ragweed, breathing heavily as the two of us lugged the canoe, heavy with its layers of paint.
   这意味着要越过宽阔的豚草区；我们两个小伙子气喘吁吁地拖着有很沉涂料层的独木舟。
9. Limit your outside activities if you are bothered by ragweed and mold.
   当你受豚草和霉菌困扰时，尽量限制户外活动。
10. According to this system, the risk value for giant ragweed was 83 and it was considered as a quarantine pest with high risk.
    应用该体系对三裂叶豚草进行了风险评估，得出其风险值为83，属高度危险的检疫性有害生物。
11. Methods Extract of artemisia pollen and ragweed pollen were prepared SDS-PAGE and Coomassis were used to analyze proteins.
    方法制备艾蒿花粉和豚草花粉的花粉浸液，采用SDS-PAGE及考马斯亮蓝染色分析两种花粉粗浸液中的蛋白质组分；
12. Conclusion Significant difference exists between the extract of artemisia pollen and ragweed pollen, with the former being more complicated.
    结论艾蒿花粉与豚草花粉提取液蛋白组分差异较大，前者更复杂；
13. Preliminary Studies on Soil Animals in a Ragweed Habitat
    豚草发生地土壤动物的初步研究
14. Studies on cytomorphology of common ragweed stamen abortion induced by Ethrel
    乙烯利诱导豚草雄蕊败育的细胞形态学观察
15. Serum specific IgEs ( anti-mite,-ragweed pollen.-Humulus pollen,-platanus pollen allergens) were detected by ELISA in asthma patients. Significant differences were noted among those in our patients and 40 normal healthy controls.
    本文用ELISA检测了30例支气管哮喘患者及40例健康成人的抗螨、法国梧桐花粉、豚草花粉、葎草花粉过敏原特异性IgE水平。
16. Bronchial provocation test with ragweed pollen allergen
    豕草花粉过敏原的支气管激发试验
17. Research Advance on Control of Ragweed
    豚草防治研究进展
18. Therefore, the main ways of control of ragweed especially biological controls were reviewed in order to found integrative control system of ragweed.
    本文对豚草防治的主要方法进行了综合论述，为豚草综合防治体系的建立提供参考。
19. The impacts of ragweed on soil animals in reproductive period exceeded that in vegetative period, that of A. artemisiifolia exceeded that of A. trifida, that in pure ragweed community exceeded that in the community with ragweed and other plants.
    豚草对土壤动物的影响，生殖生长期大于营养生长期，普通豚草大于三裂叶豚草，豚草纯群落大于豚草与其它植物混生群落。
20. Chemical Control of Ragweed
    豚草化学防治效果的研究
21. Allergic Rhinitis Model Induced by Ragweed Pollen Allergen in Guinea Pig
    豚草花粉变应原致过敏性鼻炎豚鼠模型的建立
22. Ragweeds reduced the individual number and community diversity of soil insects. According to the results of monthly ANOVA and LSD, in August and September the individual number and diversity indices of soil insects in the control plot without ragweeds were significantly higher than those in ragweed plots.
    豚草降低了土壤昆虫的个体数量和群落多样性，根据逐月方差分析和多重比较，8月和9月对照样地土壤昆虫个体数量和多样性指数均显著高于豚草样地。
23. SIT group, in which 68 patients were treated with ragweed SIT for six months before July for 3 years.
    用豚草变应原进行季节前6个月的抗原特异性免疫治疗，疗程为3年。
24. Objective To compare proteins in the extract of Artemisia pollen and ragweed pollen and to examine the existance of common antigen between the two types of pollens.
    目的比较艾蒿花粉和豚草花粉粗浸液中的蛋白质组分，探讨两者间有无共同抗原。
25. Results Of the patients, 88.86% showed positive results of inhaled allergens which were mainly pollen and ragweed;
    结果吸入性过敏原阳性率为88.86%，其中以花粉、豚草为主要致病过敏原；
26. Study on the growth state of ragweed and relative clinical diseases in Qinhuangdao area
    秦皇岛地区大规模豚草生长及临床发病研究
27. The effect of puddling treatment with water extracts which was from the different parts of False ragweed on the germination and growth of cucumber was different.
    假苍耳不同部位水浸提液拌土处理对黄瓜生长发育的作用不同。
28. The main findings as follows: 1. The effect of the coarse material coverage which was from the different parts of False ragweed on the germination and growth of cucumber was different.
    主要研究结果如下：1.假苍耳不同部位粗粉物覆盖对黄瓜生长发育的作用不同。
29. Ragweed ( Ambrosia artemisiifolia), which is recognized as a kind of malignant invasion weed, and it has been spreading in the world. It could make enormous threat on the ecological safety, development of agriculture and human health in the invaded areas.
    豚草是世界性恶性入侵杂草，在世界各地广泛蔓延传播，对入侵地的生态安全、农牧业生产及人类健康构成巨大威胁。

noun

1. any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma

   Synonym:    ambrosiabitterweed

2. widespread European weed having yellow daisylike flowers

   Synonym:    ragworttansy ragwortbenweedSenecio jacobaea