For straight - winged tailless airplanes, only the negative camber satisfies the conditions for flight.对直机翼无尾飞机, 只有负弯度才满足飞行条件.Apollos and Venuses and the Winged Victory of Samothrace are friends of my finger tips.阿波罗、维纳斯...
目的了解产妇产褥初期(产后2周)低钾血症发生率 、 临床特点及观察方法.Objective To observe hypokalemia and study its incidence, clinical features at primitive puerperium.目的探讨围产期生殖道支原体感染与产褥感染的关系.Objective To explore the relationship between genital mycopl...
他粗暴的外表下藏着一颗非常善良的心。His gruff exterior concealed one of the kindest hearts.他被一颗跳弹打伤了肩膀。He was wounded in the shoulder by a ricochet.牙医可能会决定拔掉那颗牙，以免反复发作。A dentist may decide to extract the tooth to prevent recurrent trouble...