wheal
2.Cold urticaria: Some people are met when blow a cold wind over each winter the skin is scratchy, when contacting air cooling, cold water or cold thing even, dew outside the skin or the place generation wheal that contact cold content, the person that weigh returns hemp of meeting occurrence hand, lip hemp, bosom frowsty, flustered, bellyacke, diarrhoea, faint even shock, cold sex shock is to drown one of deadly reasons, eat cold drink to be able to cause oral cavity and laryngeal strut sometimes.
3.20% fluroxypyr EC appropriate to applied in spring wheat field, its normal dosage is 900 mL/hm2 from the term of 4 leaves and one half to 5 leaves. Its control effect on broad leaf weed is over 90%. It was safe at 750～940 mL/hm2 dosage to wheal field.
