除了提供口罩，加拿大队还将携带空气净化器、哮喘喷雾剂、眼药水、鼻喷剂和咽喉含片来减轻恶劣空气的副作用。

As well as taking a supply of masks, team Canada will bring air purifiers, asthma puffers, eye drops, nasal sprays and throat lozenges to help with the side effects of poor air.

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结合饲料中添加药物、哺乳仔猪药水滴鼻等药物防治措施，可使猪群的临床发病率由51.39％降至1.39％，生长肥育猪的综合性能指标得到较大改善。

The clinical incidence of AR reduced from 51.39% to 1.39% when vaccination plus drug control, and multiple indexes were well improved for growing-finishing pigs.

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