求翻译：长期吸烟可使支气管粘膜的纤毛受损、变短，影响纤毛的清除功能。此外，粘膜下腺体增生、肥大，粘液分泌增多，成分也有改变，容易阻塞细支气管。是什么意思？

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Long-term smoking can make the trichina bronchial mucous membrane damage, is shorter, trichina impact of clear features. In addition, under the mucous membrane glandular hyperplasia and hypertrophy, increased mucus secretion, and ingredients are easy to block, change a bronchus.

Long-term smoking may cause the bronchial tube mucous membrane the cilium damage, shortening, affects the cilium the elimination function.In addition, under mucous membrane gland proliferation, large, the mucilage secretion increases, the ingredient also has the change, easy to block the bronchiole.

Long-term smoking can damage to the bronchial mucosa Cilia, shorter, affect the Cilia of the clear function. In addition, the submucosal glands hyperplasia and hypertrophy, increase in the secretion of mucus, composition also changed, easily blocking the Bronchioles.

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