Halogen atoms contain seven electrons in their valence shell.卤原子在它们的介电子层含有七个电子.Hydrogen is a one - valence element.氢是一价的元素.Evaluate the evenhanded affirms valence can reflect investment both sides more, justice.评估确认价更能体现...
The river is navigable by vessels of up to 90 tons.90吨以下的船只可以从这条河通过.The lower reaches of the river are navigable for steamers.这河的下游能够行驶轮船.The river is navigable now.河开了....
The album is a bizarre agglomeration of styles.这张专辑不同寻常地集各种风格于一体。Addition of coagulants promotes agglomeration of particles.添加混凝剂会促进颗粒的附聚作用.The agglomeration and sintering of fine particles can necessitate a lowering in ...