查询词典 spectral analysis

Science is spectral analysis.Art is light synthesis.

科学是光谱分析，艺术是光线的合成。

Synthesis and Spectral Analysis of Blue Emitting Material 9, 10-Di Anthracene

篇名 蓝光材料9，10-二蒽的合成与光谱分析

After chemistry and ~1H-NMR,~(13)C-NMR、GC-MR、UV, IR Spectral analysis instrument synthesis appraisal compoundⅠ,Ⅱ,ⅢRespectively isβ-Sitosterol, oleanolic acid , ursolic acid; compoundⅣ,The structure is being appraised. CompoundⅠand compoundⅢare discovered for the first time from Radix Rosa davurica pall. Through pharmacognosy research and the chemical composition carries on the system to the root of Rosa davurica pall.

经化学及~1H-NMR、~(13)C-NMR、GC-MR、UV、IR等光谱分析仪器综合鉴定化合物Ⅰ、Ⅱ、Ⅲ分别为β-谷甾醇、齐墩果酸、熊果酸，其中化合物Ⅰ和化合物Ⅲ为首次从山刺枚根中发现。

In addition, this paper introduces two experiments, that are comparison of the instrument with plant spectral analysis instrument and spectrophotometer.

此外，本文研究了该仪器分别与植物分析光谱仪和分光光度计的比对实验，实验表明仪器测量值与其他方法的测量结果具有显著的一致性。

The simulated climate fields were decomposed with the spherical harmonics function and the corresponding spectral analysis was made,thus the spherical harmonics feature of global 500 hPa height and the sea level pressure in several truncations was investigated and the field changes on doubling CO2 were analyzed too.

对模拟的气候场用球谐函数作波谱分析，得到了全球500hPa高度和海平面气压在不同截断时的波谱特征以及由CO2倍增(2×CO2)引起的流场变化。

The structures were elucidated by spectral analysis and chemical evidence.Result:Six compounds were isolated from the plant and identified as alpinumisoflavone,wighteone,daidzein,genistein,vittadinoside and stigmasterol.

结果 ：从该植物中分离得到6个化合物，分别鉴定为高山金链花素，4′，5，7 三羟基-6-异黄酮，大豆素，染料木素，维太菊苷和豆甾醇。

Their structures were identified by chemical and spectral analysis. RESULTS Five compounds were isolated and identified as stigmasterol 3-O-β-D-glucopyranoside, 20β-hydroxy-ecdysone,β-L-thymidine, pennogenin 3-O-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranoside and pennogenin 3-O-α-L-rhamnopyranosyl-(1→4)-α-L-rhamnopyranosyl-(1→4)-α-L-rhamnopyranosyl-(1→4)-[α-L-rhamnopyranosyl-(1→2)-]-β-D-glucopyranoiside.

结果 分离并鉴定了5个化合物，分别是Δ5，22-豆甾醇3-O-β-D-葡萄吡喃糖苷，20β-羟基蜕皮激素，β-L-脱氧胸腺嘧啶苷，偏诺皂苷元3-O-α-L-鼠李吡喃糖基－(1→2)-β-D-葡萄吡喃糖苷和偏诺皂苷元3-O-α-L-鼠李吡喃糖基－(1→4)-α-L-鼠李吡喃糖基－(1→4)-［α-L-鼠李吡喃糖基－(1→2)-］-β-D-葡萄吡喃糖苷。

The accuracy is compared with that of spectral analysis of surface wave method.

进一步从对地震地表反应影响的角度，用一维土层的等效线性化方法分析地脉动台阵方法的有效性。

Spectral analysis of model prediction errors shows that the zonal symmetric part (" wave-number zero") accounts for a large portion of the total error.

用一个全球谱模式通过较多个例的月数值天气预报试验，研究了预报结果的有用信息提取问题。

Firstly,we studied the synthesization and spectral analysis of the ionic liquids.

首先，优化了离子液体中间体Cl的合成工艺路线并对PF_6离子液体的结构进行光谱表征。

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％。