In covalent bonding, atoms share electrons.在共价键联中, 原子共有电子.Crystals may be classified as either ionic or covalent by analogy with molecules.与分子的情况一样,晶体也可以分为离子键型和共价键型.Ceramics primarily have ionic bonds, but covalent bondi...
Halogen bond is known as a kind of non - covalent intermolecular interaction.卤键是一种类似氢键的分子间弱相互作用.Chemical bond mainly includes electrovalent bonds , covalent bonds, and metalic bonds.化学键主要有离子键 、 共价键 、 金属键.Additionally, co...
People say that Erratics may be rewarmed steeping in songs by Dido.他们说,漂泊的人可以在蒂朵的歌声中重获温暖.It's a drink made by steeping pineapple rind in water.这是用菠萝皮泡在水里做的饮料。It is suitable for automatically. Packaging of steeping p...
首先考虑地面零点顺风方向22哩的位置.Consider, first, a location 22 miles downwind from ground zero.这个运动的能量叫做零点能.The energy associated with this motion is called the zero - point energy.电阻的变化造成零点漂移.The specific resistence change produces ...
列车无故停驶,不一会儿又开始查起票来,查票人的脸有些眼熟.The train stopped unaccountably ; shortly afterward a ticket inspector began ; the inspector's face was vaguely familiar....