英语释义

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

• widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity

片语

Common Ragweed annual weed with finely divided foliage and spikes of green flowers; common in North America; introduced elsewhere accidentally

同义词： Ambrosia artemisiifolia

Ragweed Pollen豚草花粉

Ragweed Mix冢草

ragweed d豚草

ragweed habitat豚草发生地

giant ragweed大猪草

great ragweed三裂豚草

western ragweed多年生豚草

ragweed poison火草毒

英汉例句

• it「s enough to make you grab a tissue: minneapolis has tacked 16 days to the ragweed pollen season since 1995; lacrosse, wisc.

  下面的数据将使你忍不住抓起一张纸巾：明尼阿波利斯市自1995年以来的花粉季增加了16天；

• dating sediments using ragweed and nuclear fallout

  利用豚草及核放射物对沉积物进行年代推定

• 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。

• at six to seven years old more than half of the children were evaluated for their sensitivity to common allergens such as dust mites, ragweed and cats.

  到6至7岁时，这835名儿童中，过半的人都有各种各样的过敏癥，对常见的过敏原如尘螨，豚草和猫等产生过敏。

• the third resembles one of the most rampant allergens of them all, a ragweed protein that causes hay fever.

  第三个与造成花粉过敏的豚草蛋白类似，该蛋白可说是过敏原里最厉害的一个了。

• 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。

• 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。

• the allergy season is really several seasons. trees start scattering their pollen in early spring, followed by grasses, and then ragweed kicks in during the summer and runs through fall.

  过敏季节一般会有好几个月，首先是树开始在早春传播花粉，然后是草，接着就是豚草，它可以在整个夏天和秋天一直传播花粉。

• in one study, accelerating spring」s arrival by 30 days prompted a 54 percent increase in ragweed pollen production.

  在一个研究中表明，春天加速30天到来提高了花粉54%的产量。

• subjects received six doses of tolamba over six weeks prior to the start of the 2006 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。

• avoid this product if you are allergic to sunflowers, ragweed or daisy-like flowers.

  如果对太阳花，豚草和菊花类过敏的请不要服用此产品。

• a paper published in the proceedings of the national academy of sciences reported that the ragweed pollen season in north america has been getting longer as the number of frost-free days increases.

  一篇发表在国家科学院行动计划里的论文中说：花粉过敏癥季节已经跟北美无霜期一样延长了。

• 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。

• ragweed that seems to be knitted out of yellow wool

  豚草好像是由黄色的羊毛

• tropical diseases such as malaria, dengue fever, and yellow fever are reaching temperate regions, and ragweed and poison ivy thrive in the hothouse world.

  疟疾、登革热和黄热病等热带疾病正在侵袭温带地区，豚草和毒藤也在温室气候里茁壮成长。

• 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；

• patients who demonstrated to severe rhinitis symptoms upon exposure to ragweed were admitted to the study.

  暴露于豕草而激发严重鼻炎癥状并证实得到缓解的患者加入该研究。

• for 75 percent of those 35 million, ragweed is the primary allergen, he added.

  对于这35,000,000人的75%来说，豚草是首要过敏原，他补充道。

• however, people who are allergic to ragweed or daisy pollen can have a similar allergic reaction to echinacea.

  然而，对豚草或菊花花粉过敏的人可能同样会对紫锥菊过敏。

• at johns hopkins school of medicine「s asthma and allergy center, clinical director peter socrates creticos is studying what is essentially a ragweed vaccine.

  petersocratescreticos是约翰霍普金斯医学院的哮喘及过敏研究中心的临床总监，他正在研究豚草疫苗。

• it」s enough to make you grab a tissue: minneapolis has tacked 16 days to the ragweed pollen season since 1995;

  下面的数据将使你忍不住抓起一张纸巾：明尼阿波利斯市自1995年以来的花粉季增加了16天；

• the findings correlate with analysis last year by the national wildlife federation that found ragweed growth rates and pollen counts increased with global warming.

  这些发现是基于去年国家野生动物联合会豚草的生长速度和花粉数量随着全球变暖增加的分析得出的。