ragweed

美 [ˈræɡwiːd]英 [ˈræɡwiːd]
  • n.豚草(北美植物,绿色小花含大量花粉,可引起枯草热)
ragweedragweed

noun

U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

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: ambrosia bitterweed
2
widespread European weed having yellow daisylike flowers;sometimes an obnoxious weed and toxic to cattle if consumed in quantity
Synonym: ragwort tansy ragwort benweed Senecio jacobaea

数据来源:WordNet

  1. 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

  2. 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

  3. Research Advance on Control of Ragweed

    豚草防治研究进展

  4. Preliminary Studies on Soil Animals in a Ragweed Habitat

    豚草发生地土壤动物的初步研究

  5. 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

  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. 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。

  8. Chemical Control of Ragweed

    豚草化学防治效果的研究

  9. 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;

  10. 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

  11. He says he usually feeds the animals ragweed and did not give the pregnant pig anything extra .

    他说他经常喂猪吃豚草,从未给怀孕的母猪喂过额外的东西。

  12. 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。

  13. 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。

  14. Ragweed pollen displayed 5 bands and the range of molecular weight was 18 ~ 63 kDa .

    豚草花粉显带5条,分子量在18~63kDa之间。

  15. The effective temperature summation throughout the growth period is about 1400 ℃ for both , it is slightly lower for common ragweed .

    全生育期有效积温二者均在1400℃上下,豚草略低些。

  16. 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。

  17. 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;

  18. Two characteristic cells were observed in the pharynx , the former is between . STUDIES ON THE MORPHOLOGICAL CHARACTERISTICS AMONG THREE KINDS OF RAGWEED WEED

    间质中有一种特征性细胞。三种检疫性豚草的形态特征研究

  19. Bronchial provocation test with ragweed pollen allergen

    豕草花粉过敏原的支气管激发试验

  20. 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。

  21. 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;

  22. 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。

  23. 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。

  24. The ragweed Ambrosia artemisiifolia , an alien invasive weed , can profoundly influence natural ecosystems , agriculture , and human health .

    豚草作为一种外来入侵杂草,严重影响着生态环境、农业生产以及人类健康。

  25. The extract of ragweed pollen had 1 bands that reacted with the same sera and its molecular weight was 18 kDa .

    豚草花粉抗原有一条,分子量为18kDa。

  26. 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。

  27. 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。

  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. 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。

  30. Don 't take bee pollen if you have an allergy to bee stings , a honey intolerance , or are allergic to ragweed or chrysanthemums .

    如果你对蜜蜂叮咬过敏,不能吃蜂蜜,或者对豕草类或菊花过敏,不要食用蜂花粉。