英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:


请选择你想看的字典辞典:
单词字典翻译
whithin查看 whithin 在百度字典中的解释百度英翻中〔查看〕
whithin查看 whithin 在Google字典中的解释Google英翻中〔查看〕
whithin查看 whithin 在Yahoo字典中的解释Yahoo英翻中〔查看〕





安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • COPD - Symptoms and causes - Mayo Clinic
    COPD is most often caused by long-term exposure to irritating smoke, fumes, dust or chemicals The most common cause is cigarette smoke Emphysema and chronic bronchitis are the two most common types of COPD These two conditions usually occur together and can vary in severity among people with COPD
  • COPD: Causes, Symptoms, Diagnosis, Treatment Prevention
    “Chronic obstructive pulmonary disease” (COPD) is a term for lung and airway diseases that restrict your breathing People with COPD have airway inflammation and scarring, damage to the air sacs in their lungs or both
  • COPD Causes and Risk Factors - American Lung Association
    Over time, exposure to irritants that damage your lungs and airways can cause chronic obstructive pulmonary disease (COPD), which includes chronic bronchitis and emphysema The main cause of COPD is smoking, but nonsmokers can get COPD too
  • Chronic obstructive pulmonary disease (COPD)
    Several processes can cause the airways to become narrow and lead to COPD There may be destruction of parts of the lung, mucus blocking the airways, and inflammation and swelling of the airway lining
  • COPD - Causes and Risk Factors | NHLBI, NIH
    Smoking is the leading cause of COPD in the United States Lung irritants, such as air pollution, can make it worse Some genetic deficiencies, such as AAT and vitamin D, increase risk
  • Chronic Obstructive Pulmonary Disease (COPD) - CDC
    COPD refers to a group of diseases that cause airflow blockage and breathing-related problems
  • Chronic obstructive pulmonary disease (COPD) - Causes - NHS
    Smoking is the main cause of COPD and is thought to be responsible for around 9 in every 10 cases The harmful chemicals in smoke can damage the lining of the lungs and airways Stopping smoking can help prevent COPD from getting worse
  • Chronic obstructive pulmonary disease - Wikipedia
    Chronic obstructive pulmonary disease (COPD) is a long-term lung condition that makes it progressively harder to breathe It occurs when the airways and lung tissue become damaged, leading to reduced airflow and less efficient oxygen exchange in the lungs
  • Mechanisms, Pathophysiology and Currently Proposed Treatments of . . .
    1 Introduction A hallmark of chronic obstructive pulmonary disease (COPD) is the chronic obstruction of the airways COPD is a progressive condition caused by inhalation of toxic particles or gases [1, 2] Tobacco smoking and inhalation of other pollutants are the leading causes of COPD [3, 4, 5]
  • About COPD | COPD | CDC
    Smoking is the main cause of COPD, but nonsmokers can get it Talk with your doctor if you have COPD symptoms or previously smoked COPD is a group of lung diseases that get worse over time The most common COPD types are emphysema and chronic bronchitis There is no cure for COPD, but it can be treated Common signs and symptoms include:





中文字典-英文字典  2005-2009