This is 20,000 feet higher than most subsonic airliners.这比大多数亚音速飞机的飞行高度高20,000英尺。The fog grounded the airliners.大雾迫使班机停飞.They placed very stable and accurate atomic clocks on regularly scheduled jet airliners.他们将非常稳定、准确的...
Methods: 38 diabetic children were treated with elaborative observation, mental nursing, meal management and infection prevention.方法: 对38例糖尿病患儿密切观察病情, 实施心理护理, 饮食管理,预防感染等护理措施....