查询词典 acidic

Both niobic acid and niobium oxide can be used as either catalyst,promoter or support in the heterogeneous catalytic reactions,such as selective oxidation,hydration,hydrolysis,alkylation,dehydrogenation and hydrogenation,because of their acidic and redox properties.

作为一种新型的催化材料，铌酸-氧化铌由于其独特的酸性和氧化还原性正受到越来越多人的关注。它可以作为催化剂的活性组分、助剂或载体使用，在烃类转化、选择性氧化、水解、水合、缩合、加氢脱氢等若干酸碱和氧化还原反应中得到广泛的应用。

The results show that all aluminum anodizing sludges were slightly neutral to acidic and mainly consist of more than 50% Al2O3; the similar total contents of Cu, Pb, Zn, Ni, Cd, and Cr in the 7 samples were found, namely, the concentrations of Pb, Cd were relatively lower, but that of Cu, Zn, Ni, and Cr were higher; the leaching tests indicate that all the samples were classed as nonhazardous wastes; but each of metals in the sample shows very different leaching behavior, possibly depending on their total contents and the final pH of leachates.

结果表明，铝型材污泥属于中性偏酸性物质，主要由Al2O3组成，含量在50%以上。各试样中Cu、Pb、Zn、Ni、Cd及Cr的总含量的分布趋势基本是一致的，其中Pb、Cd的含量较低，Cu、Zn、Ni及 Cr的含量较高。浸出毒性试验表明铝型材污泥属于非危险废物，但污泥中各重金属的浸出特性又各自不同，可能主要与它们在试样中的总含量和浸出液的最终pH值有关。

In the noninflammatory model, 2 unilateral injections of acidic saline into the gastrocnemius muscle produced bilateral cutaneous and muscle hyperalgesia 24 hours after the second injection.

在非炎症性模型中，向单侧腓肠肌注射酸性saline液2次，在第二次注射后24小时，可产生双侧皮肤和肌肉痛觉过敏。

Olid superacid and solid superbase, which are developed in resent years, attract close attention of many researchers, because of high acidic and basic strength, high catalysis efficiency, no pollution to environment, and no corrosion to equipments, reusable and renewable property.

O_4~(2-)/M_xO_y型固体超强酸和γ-Al_2O_3-NaOH-Na型固体超强碱是其中最具代表性、最有工业应用前景的催化剂，本文对两种催化剂及其在有机合成中的应用进行了研究。

Purified acidic fibroblast growth factor from bovine brain stimulates the proliferation of calvaria-derived osteoblastic cells.

洗涤酸性的纤维原细胞生长因素从似牛的大脑刺激得自头顶osteoblastic房间的增殖。

AIM: To construct,overexpress and purify a stable and active form of shortened human acidic fibroblast growth factor in Escherichia coli.

目的：稳定且具有活性的截断型人酸性成纤维细胞生长因子的构建、表达及纯化。

Since manganese oxide ore powder has a strong oxidizability in acidic aqueous solution, manganese is difficult to be directly stripped. In order to realize solvent leaching, a reductant with lower electrode potential should be used.

氧化锰矿粉在酸性水溶液中有很强的氧化性，锰难以直接溶出，为达到溶浸目的，应有电极电位较低的还原剂存在。

Objective: To value the effect of acidic electrolyzed oxidizing water disinfection in pure unit of Children's Hospitals.

目的：研究酸性氧化电位水在儿童医院洁净单元的应用。

Microcrystalline cellulose was activated with NaOH solution, then its C2-C3 bond was oxidized with NaIO4 to generate oxycellulose under the acidic condition. The hydroxy on C6 in oxycellulose was chlorinated with sulfur oxychloride in DMF to give oxycellulose chloride.

将微晶纤维素先用NaOH溶液进行活化，然后在酸性条件下，用NaIO4氧化2，3位成为醛基，使其成为氧化纤维素，再将其在DMF下用二氯亚砜进行六位氯化制得氧化纤维氯化产物。

Why the bacterias which oxygenize Fe should live in acidic environment?

Fe 氧化细菌为何要生活在很酸的环境？

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。