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- In this paper,three kinds of catalysts are introduced and discussed according to the acid or base active site.The prospect of the catalysts for aldol condensation is also been put forward. 本文根据活性中心的不同,对酸性、碱性和酸-碱两性三类不同的催化剂进行了论述,分析了羟醛缩合反应催化剂今后的发展方向。
- In this paper, three kinds of catalysts are introduced and discussed according to the acid or base active site.The prospect of the catalysts for aldol condensation is also been put forward. 本文根据活性中心的不同,对酸性、碱性和酸-碱两性三类不同的催化剂进行了论述,分析了羟醛缩合反应催化剂今后的发展方向。
- Temporary Base Activation Instruction 临时基地启用指示
- An acid can react with a base to form a salt. 酸可以和碱起反应而生成盐。
- The preparation of viscose based activated carbon fiber(ACF) felt through carbonization activation processes in vacuum was studied. 介绍了用粘胶纤维毡在真空设备中经碳化活化工艺制备活性碳纤维(ACF)毡的研究工作。
- Based on the mechanism of base activating bentonite, P zeolite was hydrothermally synthesized by alklia-treament bentonite of Ling Shou , Hebei Province. 根据碱法活化膨润土机理,确定了以河北省灵寿县膨润土为原料,经碱熔活化,水热合成洗涤用P型沸石的新型工艺方法。
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- When I see that Chinese always joined and participated in Chinese based activities, it really irks me. 其实我看见我的同胞参与的活动一二三四五都是华人活动,我是很心痛的。
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
- A coal based activated carbon with higher adsorptivity is produced in the laboratory by using Yangquan anthracite. 选用阳泉矿区的3种无烟煤为原料,通过调整工艺参数,在实验室研制出具有较高吸附性能的煤质活性炭产品。
- Can Jones beat Smith? That's the acid test. 琼斯能击败史密斯吗?那是个严峻的考验。
- The dye adsorption behavior of a series of sisal based activated carbon fibers(SACF) in water was studied. 研究了一系列剑麻基活性炭纤维(SACF)对模拟染料废水的处理特征。
- accelerator based activation analysis 使用加速器的活化分析
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
- She dropped acid in high school. 她高中时代服迷幻药。
- In the production process of activated carbon, the trace element of coal affects the quality of coal based activated carbon directly. 在活性炭生产中,原料煤中含有的微量金属元素的多少直接影响到煤基活性炭的品位。
- The metal is fretted with the acid. 金属被酸腐蚀。
- reactor based activation analysis 反应堆活化分析