查询词典 atom

The main work is as follows:(1) Using perturbation theory based on semiclassical closed-orbit theory, we discuss the photoabsorption spectra of Li Rydberg atom in radio frequency field.

主要进行了以下几方面的工作：(1)在半经典闭合轨道理论的基础上，用微扰论讨论了振荡射频场中里德堡原子的吸收谱。

The reagent molecule CH〓 that is consisted of an H atom and a CH〓 fragment which is treated as a semirigid vibrating rotor.

我们计算得到了不同初始振转态的总反应几率，积分反应截面和速率常数。

To the scientists of the 1950's and 1960's, the shattering power of the atom seemed like the answer to all our energy problems.

对于20世纪50、60年代的科学家来说，原子的裂变产生的能似乎是解决我们所有能源问题的契机。

Hydrogen atom is injected into closed carbon nanotube through the sidewall of the tube with an initial incident energy.

我们使氢原子具有一定的初始动能，通过与纳米管管壁的碰撞进入封闭的纳米管里面。

The invention relates to an improved MCM-41 mesoporous molecular sieve and a preparation method thereof, in particular relates to a dual-metal-atom improved MCM-41 mesoporous molecular sieve and the preparation method thereof.

本发明涉及一种改性MCM-41介孔分子筛及其制备方法，特别是涉及一种双金属原子改性MCM-41介孔分子筛及其制备方法。

The atom is the smallest particle of an element.

原子是元素的最小粒子。

An atom is the smallest characteristic unit of an element.

原子是元素最小的结构单位。

An atom is the smallest particle unique to an element.

原子是元素组成的最小微粒。

Atom 原子 The smallest unit of an element that still possesses the properties of that element.

决定着元素性能的元素最小的单位。

The atom is the smallest particle of an element that can have a separate existence of take part in a chemical reaction.

原子是元素的最小粒子，它能单独存在或参与化学反应。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。