查询词典 characterized

Characterized by reproduction involving the alternation of sexual and parthenogenetic generations .

他们好几代住在这里，过着很体面的日子，搏得左邻右舍的一致称道。

The gamete-producing phase in a plant characterized by alternation of generations.

由雄性和雌性结合体相结合或融合而进行的繁殖。

A division of nonflowering plants characterized by rhizoids rather than true roots and having little or no organized vascular tissue and showing alternation of generations between gamete-bearing forms and spore-bearing forms; comprises true mosses and liverworts and hornworts.

无花植物的一个亚部，以假根而非真根为特点，有小的或没有维管组织，有结合体和孢子体的世代交替；由苔藓类组成。

Red soil is characterized by its low phosphors and abundance of iron and aluminum oxide.

以含磷极低、富含铁铝氧化物、对磷具有较强的吸附和固定能力的南方红壤为材料，用该土壤对滇池水进行了去磷效果的初步试验。

The Zijinshan copper-gold deposit is the high-sulphur epithermal deposit,which is characterized by both the high argillaceous alteration of dickite and alunite and the copper mineral association of enargite, digenite and covellite.

紫金山高硫浅成低温热液型铜金矿床以一套独具特色的由地开石、明矾石组成的高级泥质蚀变和由硫砷铜矿、蓝辉铜矿、铜蓝组成的铜矿物组合为特征。

Polyamide is an important family of polymers, which is characterized by theinsertion of amide groups into the main chain of the polymer.

聚酰胺是高分子中一个重要的大类，其结构特征为在聚合物分子的主链上含有酰胺基团。

Two: Synthesized a novel rhodamine derivative with a single amidogen, then analyzed and characterized the dye by 1H NMR and EI-MS.

二、以对硝基苯甲醛和八羟基久洛尼定为原料，合成了一种新型的罗丹明荧光染料，并通过核磁共振、质谱等手段对染料结构进行了表征。

04 Nm,respectively,were used as catalysts prepared by impregnation for amination of monoethanolamine with ammonia,and their structures were characterized.

以3种具有纳米晶相结构的丝光沸石为原料，采用浸渍法制备了乙醇胺胺化反应的催化剂，并表征了催化剂的结构，考察了丝光沸石结晶度和晶粒尺寸对胺化催化反应的影响。

In the second chapter, a series of 6-aromatic amine carbonyl pyridine-2-carboxylic acid ligands have been designed, synthesized and characterized.

第二章报道了一系列新型6-位取代的吡啶-2-甲酸衍生物有机配体的分子设计、合成，并用元素分析、红外吸收光谱、核磁共振谱、质谱等方法进行了组成和结构分析。

Amitosis Nuclear division characterized by the absence of a nuclear spindle and leading to the production of daughter nuclei with unequal sets of chromosomes.

无丝分裂：是一种比较简单的分裂方式。

Must have Coordination and negotiation skill, flexible ideas, and be punctilious person.

必须具备较好的协调与谈判能力，头脑灵活，工作认真仔细

Result: 18 patients are all with simple eye.The pigment mole lies in nasal and temple sides of the ball conjunctiva,in which 2 lie in lacrimal caruncle and semilunar plica.

结果：18例患者均为单眼，色素痣大多数位于内外侧睑裂部球结膜面，2例位于泪阜及半月皱襞，经激光治疗后，10例色素痣消失，有5例行再次激光后消失，2例行第三次激光后消失，1例第四次激光后消失。