以下为句子列表：
英文: A description is given of the analytical method for the determination of the urea content in slow-release urea by the p-dimethyl aminobenzaldehyde spectrophotometry.
中文: 摘要介绍用对二甲氨基苯节醛分光光度法测定缓释尿素中尿素含量的分析方法。
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英文: Abstract: The anti-inflammatory effect of n-butanol extract of Xanthocerassorbifolia Bunge(BEX)was studied in this paper.The ear edema resulted from dimethyl benzene,paw edema induced by carrageenin,the increase of vascular permeability caused by acetic a
中文: 文摘:文冠木正丁醇提取物对二甲苯致小鼠耳肿胀、蛋清致大鼠足肿胀、角叉菜胶致小鼠足肿胀、醋酸致小鼠腹腔毛细血管通透性增加、小鼠羧甲基纤维素囊中白细胞游走、小鼠棉球肉芽肿生长均有显著的抑制作用，同样剂量下，文冠木正丁醇提取物对角叉菜胶致去双侧肾上腺小鼠足肿胀仍有显著的抑制作用，且对小鼠肾上腺重量及肾上腺中维生素C的含量没有明显影响。
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英文: Finally, the existing problems in using of dimethyl ether as aerosol propellant and its solutions were pointed out.
中文: 最后补充了二甲醚作为抛射剂存在的问题及其解决办法。
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英文: For instance, in the above case the methyl ethyl phenylmalonate may be accompanied by the products formed by ester-interchange reactions, namely the dimethyl and diethyl phenylmalonates.
中文: 比如在上面的例子中，甲基乙基苯基丙二酸酯伴随有酯交换反应形成的产品，也就是二甲基苯基丙二酸酯和二乙基苯基丙二酸酯。
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英文: In the downstream products of methanol, dimethyl carbonate (DMC), dimethyl oxalate(DMO) and dimethyl ether(DME) are considered to be valuable.
中文: 在甲醇下游产品开发方面则应重视碳酸二甲酯(DMC)、草酸二甲酯(DMO)和二甲醚(DME)。
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