查询词典 atom

Results show that hydroxyl group existing in benzene ring, sulfanilamide being adjacent to hydroxyl group and benzene ring itself are main active sites of this kind of compounds probably. Orbit energy distributing on groups and the number of net charge of N atom determine compounds' insecticidal activity directly.

计算结果表明，该类化合物中苯环上的羟基、羟基相邻的磺胺基团以及与该苯环的组合很可能是该类化合物的主要活性部位，分布在基团上的前线轨道以及N原子的净电荷的多少直接决定化合物的杀虫活性。

Sulphite SO 3 can remove oxygen atom from colouring dye, to make the dye being colourless

亚硫酸根离子（SO 32–）可移去有色染料的氧，令染料变成无色。

Atom propositions are the basic unit of symbolic logic.

原子命题是数理逻辑研究的基本单位。

Atom time clock synchronizer - synchronize clock of YOUR PC with atomic time server.

原子时钟的时间同步-同步时钟您的P C与原子时间服务器。

We are also distributor of the following companies:Pfeiffer Vacuum-turbo molecular pump, other types of pumps, gauges, Helium leak detector, mass spectrometer; Maxtek, Inc-Quartz crystal thin film deposition controller and sensors; Telemark Inc-E-beam source and power supply, optical thin film monitor; Comdel, Inc-DC and RF power supply; Angstrom Sciences-Magnetron target and materials; Oxford Scientific Limited-Atom sources; Plasma Quest Ltd-Plasma systems for coating and etching; Sentech Instruments GmbH-Ellipsometers.

我们代理的产品包括德国普发真空的全线真空产品(分子泵等各种真空泵，真空计，检漏仪，质谱仪，各种真空零部件)；美国美泰克公司的石英晶体膜厚监测仪，传感器；美国泰利玛科公司的电子枪和光学膜厚控制仪等；美国康戴尔公司的射频，中频和直流电源；英国牛津科学公司的微波等离子体源，电子束蒸发源，原子源，高能电子衍射枪；英国PQL公司等离子体溅射镀膜设备，美国安斯超科学公司的磁控溅射阴极及溅射靶材，德国森泰科仪器公司的椭偏膜厚测量仪和等离子刻蚀沉积设备等。

ITQ-26 (INSTITUTO DE TECNOLOGIA QUIMICA number 26) is a new crystalline microporous material with a framework of tetrahedral atoms connected by atoms capable of bridging the tetrahedral atoms, the tetrahedral atom framework being defined by the interconnections between the tetrahedrally coordinated atoms in its framework.

ITQ-26(INSTITUTO DE TECNOLOGA QUMICA number 26)是新的结晶微孔材料，其具有通过能够桥联四面体原子的原子连接的四面体原子骨架，该四面体原子骨架通过其骨架中四面体配位原子之间的相互连接来界定。

ITQ-27 (INSTITUTO DE TECNOLOGíA QUíMICA number 27) is a new crystalline microporous material with a framework of tetrahedral atoms connected by atoms capable of bridging the tetrahedral atoms, the tetrahedral atom framework being defined by the interconnections between the tetrahedrally coordinated atoms in its framework.

ITQ-27(INSTITUTO DE TECNOLOGíA QUíMICA number27)是新型微孔晶体材料，其具有通过能够桥联四面体原子的原子连接的四面体原子骨架，该四面体原子骨架通过其骨架中的四面体配位原子之间的相互连接而确定。

Below condition of such high temperature high pressure, the atom of sun material already ionization, formed " plasma ", and produce severe thermonuclear reaction, this is the origin of solar energy.

在这样的高温高压条件下，太阳物质的原子早已离子化了，形成了"等离子体"，并且发生剧烈的热核反应，这就是太阳能的起源。

The modified surface with a high friction coefficient becomes hydrophilic.The main reason is that: there is a basic photoreaction of oxygen under UV radiation,in which atomic oxygen may highly be generated.Then the oxygen atom reacts with trace amounts of water to form hydroxyl.

其机理为：在紫外照射条件下氧气发生光化学反应形成氧原子，氧原子和微量的水发生反应形成羟基，羟基和烃发生夺氢反应形成硅烷的烃自由基，同时硅烷的烃自由基会发生β-scission裂解形成较短链的自由基。

It is emitted by an atom during a transition from one energy state to another.

它是在能量状态转换到另一个状态通过原子发射出来。

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％。