查询词典 urea

In acidic condition, the extractive form waste water in hardboard production reacts with extra amount of formaldehyde at 1-5∶1 (formaldehyde : solid extractive, based on weight) to prepare extractive-formaldehydecomplex, then urea or phenol is added into the solution of this complex and reacts with unreacted formaldehyde to form a new adhesive system.

利用纤维板生产中废水提取物与过量甲醛(甲醛溶液与粉状废水提取物的重量比为1～5：1)在酸性条件下可制成纤维板废水提取物-甲醛复合体，此种复合体反应液中的过量甲醛再用尿素或苯酚吸收，从而制成尿素改性纤维板废液胶。

Objective To investigate the effect of hematocrit on urea clearance in hemodialysis through a trial in vitro.

目的 采用猪血离体实验方法探讨红细胞压积对血液透析尿素清除率的影响。

For the development of effective catalysts to be used in biomass gasification ,NiO nanoparticles were prepared by a homogeneous precipitation method involving an aqueous solution of nickel nitrate hexahydrate and urea.

为研制生物质气化用纳米N iO催化剂，文中以六水合硝酸镍为原料、尿素为沉淀剂，采用均匀沉淀法制备了纳米N iO，并利用TGA，XRD，TEM等分析手段对前驱体和产品的性能进行了表征。

NiO nanoparticles were prepared by a homogeneous precipitation method with an aqueous solution of nickel nitrate hexahydrate and urea. The effects of Ni(NO3) 2·6H2O ratio, reaction temperature and heat treating temperature on NiO yield and mean size were discussed.

文中采用Ni(NO3) 2·6H2O为主要原料，CO(NH2 )2 为沉淀剂制备了球片状纳米NiO粒子，并研究了反应物料配比、反应温度以及煅烧温度等条件对产品粒径和产率的影响。

Porous nanometer Ce-M-O solid solutions were synthesized by a microwave- induced combustion process using cerium nitrate hexahydrate, lanthanum nitrate hexahydrate, praseodymium nitrate hexahydrate and urea as raw materials.

使用Ce(NO3)3·6H2O， Pr(NO3)3·6H2O， La(NO3)3·6H2O，尿素为原料，利用微波引诱燃烧法合成了多孔纳米Ce-M-O固溶体。

An experiment was conducted with mixed materials of wheat straw and urea to study the changes of temperature and activities of hydrolase during composting at static state.

为了探讨微生物菌剂对小麦秸秆和尿素静态堆腐过程的影响机制，研究了在静态通气条件下，微生物菌剂对堆腐过程温度和水解酶活性的影响。

Therefore they are all heightening that content of the blood sugar,FFA,and urea nitrogen. It may be a result of hyperirritability in environment change.

说明激素变化是导致体内代谢变化的直接原因，究其根源可能是乳牛生长环境因素的变化致使畜体产生应激反应所致。

Of ichthyosis vulgaris were treated with 12% lactate cream(37 cases)and 100% urea cream(35 cases)respectively.

本文对72例寻常性鱼鳞病外用12%乳酸霜(37例)和10%尿素霜(35例)进行了双盲对照观察。

The studies show that the optimum carbon source for this strain to producing flocculant is lactose and the nitrogen source are yeast cream and urea; the optimum pH is 6.0~8.0; the optimum inoculability capacity is about 1.0 %; the salts are 0.2 % K_2HPO_4 and 0.5 % KH_2PO_4; the optimum culture time is 3 days.

该菌的最佳培养基及最佳培养条件为：乳糖10g，KH_2PO_42g，K_2HPO_45g，NaCL0.1g，尿素0.5g，酵母膏0.5g，水1L，pH6～8，温度为30℃，摇床培养3d，代谢产物对高岭土悬液的絮凝率超过97%。

The influence of urea quantity and temperature on the intercalation was researched. The product is characterized by FTIR spectroscopy.

分析了尿素用量，温度对插层反应的影响，并用红外光谱表征插层前后高岭土的结构。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。