The summations of forces in this and that directions must be zero.在这个和那个方向上的合力必定为零.Summations are almost invariably indicated ellipses instead of the more prevalent sigma notation.在表示“连加”的式子中,几乎一成不变地使用省略号来代替更为流行的“∑”符号....
Objective : To investigate the myocardium protection of warm induction and continuous perfusion cold blood cardioplegia on infants.目的研究心脏手术麻醉过程中温血灌注液和冷晶体灌注液对心肌的保护作用.Conclusions Hyperbilirubinemia in BMJ infants is lower ...
He gnashed at me, and foamed like a mad dog.他对我咬牙切齿, 象个疯狗似地吐着白沫.Foamed butyronitrile coating, providing the best ventilation, comfortableness and flexibleness.发泡丁腈涂层, 提供最佳的透气性, 舒适、灵活.Foamed plastic materials containing m...