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The main transfer forms of transition and transversion mutations are Hm→Hm and Hm→Ht respectively.

碱基转换的主要转换形式为Hm→Hm,碱基颠换则以Hm→Ht。

Aim To investigate the synergistic effect of the combination of pinellia total alkaloid and uncaria total alkaloid, and explore the mechanism of anticonvulsant action.

目的 研究半夏生物总碱和钩藤生物总碱抗惊厥的协同作用,并探讨其相互作用机制。

In order to utilize lignin effectively, base on the situation in China, the study was carried on systematically, centering around the topic of two step sulfomethylation of the soda lignin of wheat straw (the first step is methylolation, the second is sulfonation) and its application. The main purpose is to develop a heterogeneous catalytic system which not only catalyzes but also homogenizes the lignin molecule in the reaction.

为真正高效利用碱木素,木论文根据我国实情,紧紧围绕着麦草碱木素两步磺甲基化(第一步为羟甲基化,第二步为磺化)及其应用这一主题,以开发出在反应过程中既可催化反应又能使木素分子均一化的多相催化体系为主要目标,系统地展开了研究。

With the S. salsa in coastal area as material, the red pigment was extracted by lixiviating method and the extraction condition of red pigment from S. salsa was studied by single factor experiment. The red pigment horn S.

方法]以滨海盐地碱蓬为原料,采用浸提法提取红色素,通过单因素试验研究盐地碱蓬红色素的提取条件。

Glass fiber with the Nanjing Research Institute of alkali to high-quality, high-alkali glass fiber cotton as the main raw material of the current wet forming process of advanced maintenance-free lead-acid batteries are made of glass fiber adsorption partition and the compound separated board.

公司与南京玻璃纤维研究院合作以优质中碱、高碱玻璃纤维棉为主要原料采用目前先进的湿法成形工艺制成免维护铅酸蓄电池玻璃纤维吸附性隔板和复合隔板。

It indicated chemistry reaction occurred between cellulose and alkali and got alkaline cellulose.

碱与纤维素作用时,纤维素会发生化学作用生成新的化合物——碱纤维素;纤维素会发生物理化学作

After groping , reaches the best saponification technology condition: the saponification time is 4hours, the saponification temperature is 100 C, the ratio of alkali number consumed and the Waste edible oils quality is 1: 2, and the density of sodium hydroxide is 30%.

摸索出最佳皂化工艺条件:皂化时间4小时,皂化温度100℃,碱液用量(NaOH与废油脂的质量比)1:2,皂化用NaOH碱液浓度为30%。

The alkaline glass is the ultra-thin glass containing alkaline metal oxide in chemical composition, i.e.

按照化学成分的不同,超薄玻璃可分为含碱超薄玻璃和无碱超薄玻璃。

The effects of ethanol concentration, alkaline concentration, reaction temperature, reaction time, and other factors to the solubility of granular cold-water-soluble starch were analyzed, and the preparation technology conditions were also optimized.

以小麦A淀粉为材料,采用乙醇-碱处理法制备颗粒状冷水可溶淀粉,在系统分析乙醇体积分数、碱浓度、反应温度、反应时间等因素对颗粒状冷水可溶淀粉溶解度影响的基础上,对其制备工艺条件进行了优化。

Ammonia liquor is used as alkali source without additional soda adding. The use of plate and frame type filter press is characterized by no steam consumption, low running cost, good operation environment and obvious economic benefit.

采用氨水为碱源,不需另外加碱;采用板框式压滤机,不消耗蒸汽,运行成本低,操作环境好,具有明显的经济效益。

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推荐网络例句

Recall that, in the Kolmogorov axiomatization, measurable sets are the sets which have a probability or, in other words, the sets corresponding to yes/no questions that have a probabilistic answer.

延期开工的Kolmogorov宣布要衡量所有套职能有限许多坐标限制在于衡量子寅。换句话说,如果是/否的问题回答f可看的价值观念在许多最有限坐标,然后它有一个概率的答案。

The experimental results showed that the algorithm can filter singular points and remain fixity of the target edge.

实验表明:基于模糊理论的图像智能滤波方法比常规图像滤波方法运算量小,它既能去除奇异点,又能保持图像中目标的边缘不变性,具有很好的滤波效果。

It explains in detail how the methods of elicitation, discussion, and induction are to be used in the physics teaching.

本文根据心理学原理论述了改革初中物理教学的必要性,并对"启发、讨论、归纳法"在物理教学中的应用作了详细的阐述。