查询词典 urea

When urea is pyrolyzed added NH4Cl in silicone oil-210-50, yield of cyanuric acid is 93% and the purity is 99%.

将尿素加NH4Cl，在硅油210－50中裂解，收率为93％，纯度达99％。

It was conducted that the effect of ammonium nitrate (NH4NO3), ammonium acid carbonate (NH4HCO3) and urea[CO (NH2) 2] of different rate of fertilizer application on nitrate and nitrite in carrot (Daucus carota L.).

中文摘要：本文研究了硝酸铵、碳酸氢铰和尿素三种氮肥在不同施肥量下对胡萝卜(Daucus carota L。)硝酸盐和亚硝酸盐含量的影响。

NOT: excess proteins are deaminate directly to urea.

不是： 过剩的蛋白质被直接脱氨成尿素

Said chemical matter comprises compound containing ammonium and halogen atom absorption, and lower carbon number hydrocarbons containing halogen atom and it's derivant; it can be used separately or together with urea, ammonia gas and natural gas.

这些化学添加物包括含有铵和卤原子的化合物、含有胺及卤原子的化合物以及含有卤原子的低碳烃及其衍生物，可以单独使用或与尿素、氨、天然气等主还原剂混合使用。

Cold press, dewax, mix solvent dewax, molecule sift, dewax, urea dewax, bacterium dewax, catalyze, face hydrogen lower, congeal and spray method of dewaxing etc.

冷榨脱蜡，混合溶剂脱蜡，分子筛脱蜡，尿素脱蜡，细菌脱蜡，催化临氢降凝及喷雾脱蜡等方法。

We reconstructed the gene of human scFv and prepared scFv and scFv antibody fragments by prokaryotic expression system PET22b/BL21(DE3). After being purification by Ni-NTA column and renaturalization by urea dialyzation, the affinity and thermostability of scFv and scFv were detected.

结果表明，成功构建了scFv基因；实现了scFv和scFv在原核中的高效表达，二者的表达量均占菌体总量的35％以上，且成功的纯化了表达的重组蛋白，复性后获得了有活性的纯化重组蛋白。

After collecting the bacterial cells and breaking the cell by means of ultrasonic, the inclusion bodieswere extracted. The extracted products were denatured with 8 mol/L urea and purified through Ni-NTAcolumn. The purified products were renatured by dialyzation, and then were analyzed by SDS-PAGE.

在优化条件下诱导重组菌表达，收集菌体经超声波破碎和裂解后提取不溶性包涵体，以8mol／L尿素处理包涵体提取物并进行Ni-NTA亲和层析纯化，纯化表达产物经透析复性后以SDS-PAGE分析其复性效果。

Experiments were carried out by using the membrane sheet made of cellulose ester as a permeable barrier to dialyze urea from the aqueous solution. Theoretical predictions are in good agreement with the experimental results.

而本实验是以纤维酯为材质的薄膜做为阻隔膜将尿素由单行程装置水溶液端透析到薄膜的另一端，而理论的预测值与实验的结果相当吻合。

Export VAT refunds for urea products with tariff numbers 3102100010, 3102100090 and 31028000, and diammonium products with tariff numbers 3105300010, 3105300090 and 31054000 have been suspended as from 1 April 2005 regardless of whether an export contract has been registered.

自2005年4 月1 日起，出口商品代码为：3102100010、3102100090、31028000 的尿素产品，和出口商品代码为：3105300010、3105300090、31054000 的磷酸氢二铵产品，不论出口合同是否备案，一律暂停出口退税。

According to the intrinsic viscosity in dichloroacetic acid at 25℃, the molecular weight of polymers were estimated to be 20, 000～50, 000.Because of the thermal instability of the urea bond in molecular chain, all synthetic polymers began to degrade around 220℃, and had no melting point.

由于模拟聚合物中所含的脲键存在着热不稳定性，所有聚合物的热分解温度都在220℃附近（低于天然动物丝蛋白分解温度），并且所有聚合物样品在熔融之前已开始分解；另外只有分子量比较大的模拟聚合物P4有明显的玻璃化转变（T〓=107℃）。

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。