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It,s allelchemicals were isolated through extraction, thin-layer chromatography, and column chromatograpathy. After the white clover was infused in ethanol and evaporation, the leavings was dissolved by water. The aqueous extract was extracted by petroleum,chloroform, ethyl acetate and n-Butanol successively, and the bioassay showed that the chloroform phase has obvious inhibitory effect, the inhibitory rate was 44.32%,88.08% on Abutilon theophrasti M., seedling length and root length, 82.08%,92.16% on Echinochloa crusgalli L., seedling length and root length, and the Amaranthus retroflexux L., germination rate is 0, the secondly was ethyl acetate phase.

运用萃取、薄层层析、柱层析等方法对白三叶草地上部分的化感物质进行初步分离,结果表明,白三叶草经乙醇浸提旋转蒸发后用蒸馏水溶解,依次用石油醚、氯仿、乙酸乙酯、正丁醇萃取,生物测定表明氯仿组分对杂草的抑制作用最强,对苘麻芽长和根长抑制率分别为44.32%、88.08%,对稗草芽长和根长的抑制率分别为82.08%、92.16%,反枝苋的发芽率为0;其次是乙酸乙酯相。

Men After-shave t oner The product contains abundant perilla essence, chamomile essence, gingko essence, aloe essence and other vegetable moisturizing ingredients to quickly complement moisture for shaved skin, soften corneum, resume skin health, prevent shave damage and skin roughness; firm and constringe skin, prevent moisture evaporation, make skin become clear and oil-free. The weak acidic, fragrance-free and pigment-free toner is the same mild to the sensitive skin.

DCE 男性须后化妆水150ml Men After-shave t oner 功能:本品内含丰富的紫苏精华、母菊精华、银杏精华以及芦荟精华等植物性保湿成份;为剃须后的肌肤迅速补充水份,软化角质层,恢复肌肤健康状态,预防剃须时的刮伤与肌肤粗糙;紧致收敛肌肤,防止水分蒸发,使肌肤清爽不粘腻,对敏感肌肤也同样温和低刺激的弱酸性化妆水,无香料无色素。

Products Antiknock reliable, good stability, and suitable for evaporation, and good clean and free from corrosion and so on.

产品具有可靠的抗爆性,良好的稳定性,适宜的蒸发性,较好的洁净性及无腐蚀等优点。

Alcohol gasoline antiknock reliable, good stability, and suitable for evaporation, and good clean and free from corrosion and so on.

醇醚汽油具有可靠的抗爆性,良好的稳定性,适宜的蒸发性,较好的洁净性及无腐蚀等优点。

At approximately 40% to 50% of the moisture holding capacity of the coal, the self-heating rate becomes measurable.

由于氧化过程产生的热量不能弥补蒸发损失的热量,一般温度降到大约40%~50%左右,煤的自热会强烈增加。

The evaporation of fuel droplets is an important process in the combustion of liquid fuel.

在液体燃料的燃烧过程中,燃料液滴的蒸发是关键的一环。

In the experiment distillation method is adopted and distillations in the different temperature range are collected.

组成成分分析采用色谱—质谱联用分析技术,得到生物质焦油及其馏分的组成成分;热动力学特性采用综合热分析仪进行研究,通过测定不同气氛和不同升温速率的热重曲线、微商热重曲线和差热曲线,定性分析生物质焦油及其馏分的蒸发和燃烧等特性,并定量求解热动力学参数。

Therefore, developing evapotranspiration models of vegetation is always an important research topic in both ecological process and water resources management of terrestrial ecosystem.

因此 ,植被蒸发散量的估算模型开发一直是陆地生态系统的生态学过程和水资源管理研究的重要领域。

So developing the evapotranspiration models of vegetation has been an important field of ecological process and water resources management of terrestrial ecosystem.

因此,植被蒸发散量的估算模型开发一直是陆地生态系统的生态学过程和水资源管理研究的重要领域。

Worse still, he said, the Aral disaster showed that airborne salt from the evaporation of Balkhash would land on glaciers and make them melt all the more quickly.

更糟的是,他说,咸海的灾难表明,空降盐从蒸发巴尔喀什将土地的冰川和熔体,使他们都更迅速。

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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.

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