The axioms adopted by Euelid mere supposed to be self - evident truths.欧几里德用的公理都应看作是不证自明的真理.The theorems should be deduced from axioms by purely logical arguments.定理应该通过纯粹的逻辑的推导而从公理演绎得到.The simplest of the substitute axi...
乌鸦停在树梢鸣叫着.Blackbirds were sitting at the tops of trees singing.我走着, 林中鸟在鸣叫.As I walked on, some birds were singing in the woods.红雀吱喳鸣叫着她春天的歌.The linnet chirps her vernal song....
分子的疏水性跟分子的体积和极性有关.The hydrophobicity is related to molecular volume and polarity.采用浸没式疏水性中空纤维膜组件.An immersion - typed drainage hollow fiber membrane component is adopted.丙纶作为疏水性纤维的同时, 又有着优越的导湿性能.In addition to good water...