查询词典 molecule

Molecular iodine has rich strong absorption lines near 532 nm that can provide the absolute references for frequency stabilization. A monolith solid laser was tuned at the spectrum of transition R (56) 32-0 of iodine molecule with new modulation frequency 375 kHz.

使用532 nm单块固体激光器，在375 kHz新的调制频率下，利用调制转移技术，将激光频率调谐到127I2的R(56)32-0跃迁的吸收谱线，并观察到该吸收谱线相应的15条超精细结构分量。

Absorb absorbed absorbefacient absorption adsorb adsorption sorb sorption molecule The smallest particle into which an element or a compound can be divided without changing its chemical and physical properties; a group of like or different atoms held together by chemical forces.

分子能被分的没改变化学和物理成分的一个单元或化合物的最小粒子；由化学力聚在一起的一组相似或不同的原子(1)mol 词根大块；堆；球 biomolecule demolitionn。

Atom, molecule or radical can be excited to a specific intermediate state by absorbing m laser photons, then the parent ion can be produced by absorption of another n laser photons. The ion yield can be increased drastically due to resonant absorption, comparing with the ion yield in non-resonant absorption. This multiphoton process is usully called Resonance Enhanced Multiphoton Ionization. REMPI technique plays an important role in detecting the high electronic excited states of atoms, molecules and radicals.

原子、分子、离子或自由基在同时吸收m个光子从下态共振跃迁到中间态后再吸收n个光子使其电离的过程中，下态和中间态的多光子共振吸收使得产生的离子信号强度比相应的非共振多光子电离得到的离子信号强度有很大的增强，该过程称为共振增强多光子电离REMPI。

It shows that the change of the structure and the state of H2O molecule in the magnetic field affects the absorption curve of K2Cr2O7 evidently.

说明在磁场作用下，水分子结构及状态的改变对K2Cr2O7吸收光谱有着重大影响。

And a fluorescence molecule beacon probe is designed between upstream and downstream priers, 5' end of probe can mark fluorescence reporter group FAM, and the 3' end markes fluorescence quenching group DABCYL, and 5' end and 3' end of the probe have 6 bases which can be reflected and complemented to make fluorescence molecule beacon probe do not give out fluorescence signal in free state.

在上下游引物中间设计一条荧光分子信标探针，探针的5'端标记荧光报告基团FAM，3'端标记荧光淬灭基团DABCYL，探针的5'端和3'端有6个碱基能反折互补，使荧光分子信标探针在游离状态下不发出荧光信号。

A gas of produced raw molecule mixed with carbon dioxide is precooled in an outflow channel maintained at -15 DEG C and trapped in a trapping vessel chilled by dry ice to thereby enhance the efficiency of trapping of raw molecule.

在保持为-15℃的流出通道中将所制得的混有二氧化碳的原料分子气体预冷却并将原料分子捕集在被干冰冷却的捕集容器中，从而提高原料分子的捕集效率。

In chapter 7 the photoassociation process inside an optical lattice is investigated. A scheme of controling the atom-molecule transformation process by sweeping the Raman laser frequency is proposed. With this scheme, the atom-molecule superposition state and coherent molecular output can be obtained.

在第七章，我们会考察光学晶格上的光子离解过程，并提出利用激光扫频的方法对光学晶格上的原子一分子相互转换过程进行控制，以得到稳定的原子一分子叠加态并实现分子相干输出的方案。

Besides,the infrared and Ramam activity of the vibration mode of the molecule and some possible transition of the vibration spectrum has also been researched.The results show: the vibration mode of Cr6 molecule is Гvib=2A1g+2E...

研究结果表明，其振动模式是红外活性，振动模式A1g、Eg和T2g是拉曼活性，振动模式T1g和T2u是非活性的，红外跃迁可以跃迁到T1u，拉曼跃迁可以跃迁到A1g、Eg和T2g。

As prepared sample were characterized by FTIR and XRD, Results showed that the C-H bonds disappeared and the C-F bonds gradually increased in the process of reaction, the plane structure of mesophase pitch molecule was destroyed and distortion molecule construction of pitch fluoride took place it, moreover, the average distance between layers gradually increased with the enhancement of the F/C atomic ratio of pitch fluoride.

红外测试表明：随着氟化反应的进行，C-H键消失，C-F键形成并逐渐增加；XRD测试表明：中间相沥青中原有的大分子平面芳烃结构被破坏。

With the high sensitivity and high resolution of the CO intracavity Laser Magnetic Resonance spectrometer, the high-resolution spectra of the rare isotope molecule ~(15)N~(16)O in natural abundance were successfully observed, which provided experimentai data for the analysis of the hyperfine structure of NO molecule.

通过对中红外CO内腔激光磁共振光谱仪的改造，我们大大提高了该谱仪的探测灵敏度和分辨率，并成功用于探测NO稀有同位素分子~(15)N~(16)O的超高分辨光谱，为该分子的超精细结构和Λ-双分裂分析提供了实验依据。

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％。