Objective To investigate the characteristics of pulmonary function in cough variant asthma ( CVA ).目的探讨咳嗽变异型哮喘 ( CVA ) 的肺功能特点.Conclusion There were reversible airway obstruction in CVA patientsand pulmonary function test...
蒸汽的使用引起了许多其他变革.The use of steam originated many other reforms.光束通过盛蒸汽的容器.The light beam passes through the container holding the vapor.聚乙烯保水蒸汽的性能良好.Polyethylene is an excellent barrier to water vapor....
当地居民和志愿者正在忙着填装沙袋,修筑大坝.As residents and volunteers scramble to fill sandbags and build dikes.推进剂填装管改装件已变更为辅助推进器.Propellant Injection Vent rigs have been changed into Auxiliary Thrusters rigs.讽刺地而不是晴朗的微笑, 吨泪花填装了我的面颊.Ironic...