查询词典 acidic

The red deodar cedar has the high corrosion preventing ability, originates in one kind which grows naturally is been called Thujaplicins the alcohol type material; Moreover one kind is called Thujic the acidic material to guarantee the lumber not by the insect corrosion.

红雪松具有高度的防腐蚀能力，来源于自然生长的一种被称为 Thujaplicins 的醇类物质；另外一种被称为 Thujic 的酸性物质确保了木材不被昆虫侵蚀。

Also, it is baking soda's neutralizing action on acidic scent molecules that makes it an effective deodorizer.

此作用于酸性分子中和后起到了除臭的功效。

Detergency Property Of a lubricating oil to reduce or prevent deposits formed under high temperature conditions Or as a re-suit Of the action on the oil of acidic contaminants.

清净性 指润滑油在高温条件下或在酸性污染物作用下，阻止或减少生成沉淀的能力。

If your body is overly acidic, your cells cannot detoxify.

如果你的身体过於酸性，您的细胞不能解毒。

This method is based on the diazotization of sulfadiazine with sodium nitrite in acidic medium and the coupling reaction with α-naphthylamine.

在盐酸介质中，利用磺胺嘧啶－亚硝酸钠－α-萘胺的重氮化－偶合反应，建立了流动注射光度法测定磺胺嘧啶的新方法。

Use nitrite and the Sulfanilic acid diazotization in acidic conditions,with dinitroaniline coupling formation color reaction,established the method of using the color reaction Determination Chinese cabbage s Nitrite content.

在酸性条件下亚硝酸盐与对氨基苯磺酸重氮化后，再与盐酸萘乙二胺偶合形成颜色反应，建立了用比色法测定大白菜中亚硝酸盐的方法。

Hydrolysis of 2,3-epoxy-butanol-p-methylbenzensulfonate (12) in acidic aqueous media gave chiral vicinal diol (2) in high enantioselectivity (95% ee).2. The chiral vicinal diol s play an important role in organic .

手性邻二醇在有机合成中具有重要的用途，它们是理想的手性合成砌块，可用于合成多种手性药物，许多含有手性邻二醇结构的药物或生物活性物质将有更重要的应用。

The method of liquid phase synthesis of dioxane from the cyclodehydration of diethylene glycol catalyzed by ASP-type solid acidic catalysts was studied.

研究了ASP型固体酸催化剂一缩乙二醇环化脱水合成1，4-二氧六环的液相反应。

Diphenylbenzidine was synthesized by diphenylamine using glacial acetic acid and water as solvent in acidic condition.

摘 要：以二苯胺为原料，水和冰醋酸为溶剂，在酸性条件下一步合成二苯基联苯二胺，该方法具有操作简单，原料易得等优点。

Since the dismutation of superoxide radicals by SOD is a reaction that is rate-limited by diffusion and enhanced by electrostatic guidance, all these structural features may be related to GP-MnSOD's high catalytic activity: first, Lys38 may increase the effective enzyme-substrate association rate by enhancing the electrostatic gradient at its substrate channel; second, an excess of acidic over basic residues makes the negative surface potential of GP-MnSOD more larger than those of other known MnSODs. This may enhance the reaction rate by reducing futile collisions of superoxide radicals with GP-MnSOD's surface.

因此，GP-MnSOD的上述结构特征可能与GP-MnSOD的较高酶活有关：首先，Lys38增加了底物通道口的正静电势梯度，从而可能促进了GP-MnSOD的活性中心与底物的有效结合速率；其次，GP-MnSOD表面覆盖的过量酸性残基使得它比其它MnSOD在底物通道以外的蛋白表面更多地被负静电势所覆盖，这可能有效地减少了超氧阴离子与GP-MnSOD表面的无效碰撞，从而提高了反应速率。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。