查询词典 urea

Controlled-release membrane was prepared based on the phase inversion method in which circulated urea particles were coated with polyethylene and olefin dispersed in tetrachloroethylene solution. The effect of atomizing on the membrane structure and nutrients release characteristics was investigated systematically.

利用喷雾相转化法将聚乙烯和石蜡溶于四氯乙烯的溶液喷射到处于流化状态的大颗粒尿素上，制备控制肥料养分释放的控释膜，系统地研究了喷雾－相转化－成膜过程中雾化状态对控释肥料膜结构和养分释放性能的影响。

A kind of blue encapsulated electronic ink microcapsule was prepared by in situ deposition method utilizing urea and formaldehyde solution as aqueous phase and tetrachloroethylene dissolved with oil solvent blue dye as oil phase under different pH condition and Polyvinyl Alcoholand gelatin as modifying agent,respectively.

以溶有油溶蓝的四氯乙烯为油相，以甲醛和尿素溶液为水相，分别利用明胶和聚乙烯醇作为改性剂，在不同pH条件下，利用一步原位沉积法制备出脲醛树脂微胶囊，方便快捷。

A clear thermosetting resin made from urea and formaldehyde and used in electrical fittings, adhesives, and finishes.

一种清亮的热硬化性树脂，由尿素和甲醛制成，用于电器装备、粘合剂和末道漆中。

It may easily fast appraise the intestinal tract pathogenic bacteria using the trisaccharide iron urea indol culture medium recombination

应用三糖铁尿素靛基质培养基再结合血清凝集可简便快速地鉴定出肠道致病菌。

The colony positive rate exam which after the trisaccharide iron urea indol culture medium is 28.91%,higher than the exam the colony positive rate using the trisaccharide iron culture medium (7.67%).

经三糖铁尿素靛基质培养基筛检出的菌落阳性率为28.91%，比三糖铁培养基筛检出的菌落阳性率（7.67%）高。

A series of coated urea and coated compound fertilizer were prepared with rosin and Tung oil as film-forming materials.

以桐油为主要成膜材料制备了桐油包膜尿素和桐油包膜复合肥料。

They can be chosen as a organic urea enzyme inhibitor.3 The adsorptive effect of some additive that the power of zeolite is ,which can adsorb big molecules and ions, is regard as a good additive.4 The adsorptive effect of some bond indicated that HA of turfy soil and CMC were both good bonds.

缓释氮肥PCF、磷钾肥和硝化抑制剂双氰胺进行三因素五水平的二次通用旋转组合模型设计：对于油菜硝酸盐在生育期内的动态变化规律来说，PCF、磷钾肥和双氰胺过高、过低都不利于油菜的正常生长，中量水平处理时较好。

Four uncropped soils in subtropical tea producing area were applied in soil column experiments to study the influence of urea and fallen tea leaves on soil acidification.

用亚热带茶区的4种未垦荒地土壤作土柱模拟，研究了重施尿素和表覆茶树落叶对土壤酸化的影响。

Urea-SDS-PAGE showed that no unpurposed propein was found after ConA-sepharose chromatography.2. Identification of alliinaseⅠ, alliinaseⅡ Two different alliinase, named alliinaseⅠand alliinaseⅡ, were found in ConA-sepharose chromatography.

尿-SDS-PAGE电泳图显示，经亲和层析纯化后的酶无杂蛋白带。2、酶Ⅰ、酶Ⅱ的鉴定在ConA-Sepharose亲和层析操作中，发现大蒜鳞茎中存在两种不同的蒜氨酸酶：命名为酶Ⅰ、酶Ⅱ，其中酶Ⅱ是主要部分，酶Ⅰ活性较弱。

Fertilizing was favorable to the upgrowth of Gentiana macrophylla, and urea had the most effective.

结论4年生秦艽最具有栽培价值，为秦艽的高效人工种植提供了依据。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。