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Because of fluoride substitutions and quinoxaline structures, two new compounds are electron deficient. With alkyl substituted fluorenes, the two new compounds both have good solubility.

新的化合物因为含有氟取代基和喹喔啉结构使得整个分子呈缺电子状态，同时烷基取代的芴使得材料具有良好的溶解性。

The above-mentioned compounds display the relative permittivity of around 10~20, the quality factor of around 1000~30000 GHz and the temperature coefficient of resonant frequency of around -9~-100ppm /℃.The compounds are sintered in the temperature range of 700 ~ 1100oC.

以上化合物相对介电系在10~20之间，化合物Q×f约为1000 ~ 30000、温共振系为-9~-100ppm /℃烧结温均并高在700~1100oC之间。

Finding ways to reposition or repurpose these compounds is a high-growth opportunity due to the relatively low cost compared to developing new compounds.

设法复位或重新安排这些化合物是一个高增长的机会，由于相对较低的成本相比，开发新的化合物。

Preliminary bioassay indicates that some compounds display herbicidal activity and excellent fungicidal activity to some extent, and among them the compounds 5k and 8f exhibit higher than 90% inhibition effect against Rhizoctonia solani in dosage of 50 mg/L.

初步的生物活性测试结果表明，所合成的化合物均表现出不同程度的除草及杀菌活性，其中化合物5k和8f的活性最好，在50mg/L浓度下对水稻纹枯病菌的抑制率达90%以上。

The content of the volatile compounds reaches highest at 6 months and then decreases. The contents of volatile compounds in M. semimembranosus and M.

而挥发性化合物的含量在6个月达到最高值半膜肌和股二头肌干物质中分别为9240.16μg壬烷·100g~(-1和13227.85 μg壬烷·100g~(-1)，然后含量下降。

The re-sults showed that 47 volatile compounds were totally identified, of which monoterpene and sesquiterpene compounds were the main components.

结果共确认出47种挥发性成分，其中单萜类和倍半萜类化合物为主要组分。

In this paper,the behavioral,physiological, ecological adaption mechanism of H.armigera and H.assulta to their common host plant tobacco were studied comparatively,and the main results were summarized as follows:Electroantennogram response of adult to tobacco volatiles:(1) H.armigera and H.assulta elicited similar EAG responses to the tested 20 tobacco volatiles;both of them elicited significantly more sensitive to green leaf volatiles,aliphatic and aromatic compounds, than to monoterpene,sesquiterpene,heterocyclic compounds under lower concentration; while the similar EAG responses under higher concentration were detected,but most of them were not significantly different with each other.

本文从行为、生理和生态适应三个方面，对棉铃虫和烟夜蛾与烟草间的互作进行了比较研究，主要结果如下：成虫对烟草挥发物的EAG反应：(1)两种夜蛾对测试的20种烟草挥发物均可产生EAG反应；低浓度下对绿叶气味、脂肪族、芳香族化合物的EAG反应显著高于单萜类、倍半萜类和杂环化合物；高浓度下的EAG反应也表现出相似的总体反应趋势，但多数反应值间的差异未达显著水平。

Results: SPME was effective to analyze the flavor substances in Portunus trituberculatus and Squilla Oratoria, 20 and 15 main volatile compounds were identified respectively by comparing their mass spectra with those contained in the NIST mass spectral database; among these compounds most of them were carbonyl and alcohols.

结果：固相微萃取技术有效提取了三疣梭子蟹和口虾蛄肌肉中的呈味物质，经过NIST质谱数据库和文献对照，分别确定了20种和15种主要呈味物质，大多是一些酸类、酯类、醛类、醇类等化合物。

They are 30 flavonoids of which 12 are new compounds, six are steroid compounds (2 new sterol), 2 new stilbenes, 2 lignans.

应用光谱和波谱技术鉴定了所有化合物的结构，特别是应用二维核磁共振技术解析了18个新化合物的结构。

Hydrothermal synthesis of Sn-contained complex compounds mostly focuses on the synthesis of sulfur-substitute stibium acid metallic complex compounds.

含锑配合物的水热溶剂热合成主要集中在硫代锑酸金属配合物的合成上。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。