乙酯

Ethyl acetate?formic acid (100∶1∶0.5) as elute］.

乙酸乙酯？甲酸(体积比100∶1∶0.5)为洗脱剂，可以将大黄酚和大黄素甲醚完全分离。

Using improved E-screen assay, we found that 1 is a phytoestrogen and has strong estrogenic activity.

其中，kobophenol A(1)是主要组分之一，约占乙酸乙酯部位的20%。1是二苯乙烯类四聚体。

Fatty acid ethyl esters was synthesized by ethanolysis of safflower seed oil.

通过红花籽油乙醇解反应制备脂肪酸乙酯。

Titanium ethoxide was directly prepared using titanium as sacrificial anode in absolute ethanol.

采用海绵钛为&牺牲&阳极，在无隔膜电解槽中，电化学一步法制备了纳米TiO2 前驱体钛酸乙酯Ti 4 。

The extremities were titanic, and there was no response to touch stimulations.Our results suggested that Pentobarbital sodium inhibited neuronal firing through GABA_A receptors, therefore the local field potentials and neural firing rates were inhibited; Urethane acted on many kinds of receptors including inhibitory and excitory ones, so the local field potentials did not change significantly; however, because of the multiform receptors on the neurons, the changing of firing rates to different neurons were not the same; Ketamine mainly acted on the NMDA receptors, therefore the local field potentials and neural firing rates were enhanced, and most neural firing rates would be increased.

从这三种麻醉剂的底层作用机制来看，戊巴比妥钠通过作用于GABAA受体对神经细胞发挥抑制性作用，因此表现为场电位和神经元放电的降低；氨基甲酸乙酯同时作用于多种受体通道，既有兴奋性受体，也有抑制性受体，因此，对场电位的影响不大，但对单个神经元来说，每个神经细胞上的受体通道分布差异较大，因此，单个神经元的放电频率变化会有所不同；盐酸氯胺酮主要作用于兴奋性的NMDA受体，故整体场电位活性增加，多数神经元的放电频率也会有所升高。

Spontaneous discharges of the rostral ventrolateral medulla neurons were extracellularly recorded by multi-barrelled microelectrodes in urethane-anesthetized rats.

实验用多管微电极细胞外记录氨基甲酸乙酯麻醉的SD大鼠延髓头端腹外侧区神经元的活动。

The unit discharge of auditory neuron in the cortical AⅠ area was recorded with the extracellularly recording method. The character of ON-OFF responses induced by short pure tone and the influence of stimulating lateral amygdaloid nucleus on these responses and the tuning curves of the recorded neurons were examined.

在30只氨基甲酸乙酯麻醉的SD大鼠上记录神经元单位放电，观察短纯音诱发的皮层AⅠ区神经元ON-OFF反应的特性及电刺激杏仁外侧核(lateral amygdaloid nucleus， LA)对ON-OFF反应以及调谐曲线的影响。

OBJECTIVE: To observe the biocompatibility and fibrovascular condition of methl-methacrylate modified PHEMA hydrogel orbital implant.

目的：观察通过甲基丙烯酸改性聚甲基丙烯酸β羟乙酯水凝胶义眼台的生物相容性和纤维血管化情况。

Two synthetic routes starting from 1,3-dihydroxyacetone and formamidine acetate as well as imidazole-4,5-dicarboxylic acid as starting material were investigated, and the reductive reaction of ethyl imidazole-4-carboxylate was also investigated.

本文对以1，3-二羟基丙酮和醋酸甲脒为原料和以4，5-二羧酸咪唑为原料合成4(5)-羟甲基咪唑的两条工艺进行了研究并优化，同时对4(5)-羧酸咪唑乙酯的还原反应进行了探索性实验。

Dihydroxyacetone; formamidine acetate; imidazole-4,5-dicarboxylic acid; optimizing process; ethyl imidazole-4-carboxylate; reductive reaction; 4(5)-hydroxymethylimidazole

关键字或关键词组： 1，3-二羟基丙酮；醋酸甲脒；4，5-二羧酸咪唑；工艺优化；4(5)-羧酸咪唑乙酯；还原反应；4(5)-羟甲基咪唑

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。