极性的

The free fatty acids were extracted with petroleum ether and were separated on silicon gel column chromatography. The ethyl acetate-soluble lipid fraction and water-soluble lipid fraction were subjected to hydrochloric acid-catalyzed methanolysis, then were extracted with petroleum ether, respectively.

用石油醚提取低极性组分，经硅胶柱层析分离得到游离脂肪酸；用乙酸乙酯提取酯溶性神经酰胺及其衍生脂类，提取物和残余的水溶性脂类分别经盐酸甲醇解，水解产物再用石油醚提取。

Especially,the zero-crossing surging of the monopolar SPWM doubleside control is discussed.

并特别讨论了单极性双边控制中的过零点振荡问题。

NAA was necessary in the induction of roots.

这可能与激素的极性运输有关。

Bipolar disorder may therefore give rise to rages in patients in either the depressive or the overexuberant phases of the disease.

两极性疾病在疾病的抑郁阶段或过度兴奋阶段都可能使病人产生狂怒。

The UV-vis absorption and photoluminescent spectra of the systems in n-hexane, tetrahydrofuran, and CH2Cl2 are investigated.

并用UV-vis和PL测定了此类化合物在正己烷、四氢呋喃和二氯甲烷不同极性溶剂中的发光性能。

Macro-porous-type and non-polar adsorption resin AKS-W is an ideal adsorbent for the extraction of the effective components in Plumula Nelumbinis.

结论大孔型非极性吸附树脂AKS-W对莲子心中有效成分是一种较为理想的分离介质。

The insecticidal activities of the ethanol extracts and 5 kinds of extracts with petroleum ether, chloroform, ethyl acetate, n-butanol, aqueous from Rubia cordifolia L. against wolfberry aphis was investigated.

采用点滴法，测定了茜草乙醇提取物和石油醚、氯仿、乙酸乙酯、正丁醇和水5种不同极性萃取物对枸杞蚜虫的触杀活性。

The features of the SEPIC converter has the buck-boost operating mode, positive output polarity, low input current pulsation, and wide input voltage range, suitable for low-power wind generator system in power conversion.

本文研制一独型风发电系统之最大功追踪，所提的系统架构为 SEPIC 转换器，其转换器具备升压，正向输出极性，低脉动输入电，输入电压范围大之优点，适合应用在低功风发电系统电能转换。

Then, the pigments were modified with stearyl amine, which could react with -SO〓H or -COOH on pigment surface.

在此基础上，加入硬脂胺使其与极性基团成盐，得到了效果较好的协同增效作用。

Photovoltaic Polarity Inversion in Thin Filma of Titanoxophthalocyanine/N,N-Bistolylperylene Tetracarboxylic Dimimide Composite Films

酞菁氧钛/N，N-二甲苯基苝酰亚胺复合薄膜的光伏极性反转

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。